wp_media_insert_url_form

The timeline below displays how wordpress function wp_media_insert_url_form has changed across different WordPress versions. If a version is not listed, refer to the next available version below.

WordPress Version: 6.1

/**
 * Creates the form for external url.
 *
 * @since 2.7.0
 *
 * @param string $default_view
 * @return string HTML content of the form.
 */
function wp_media_insert_url_form($default_view = 'image')
{
    /** This filter is documented in wp-admin/includes/media.php */
    if (!apply_filters('disable_captions', '')) {
        $caption = '
		<tr class="image-only">
			<th scope="row" class="label">
				<label for="caption"><span class="alignleft">' . __('Image Caption') . '</span></label>
			</th>
			<td class="field"><textarea id="caption" name="caption"></textarea></td>
		</tr>';
    } else {
        $caption = '';
    }
    $default_align = get_option('image_default_align');
    if (empty($default_align)) {
        $default_align = 'none';
    }
    if ('image' === $default_view) {
        $view = 'image-only';
        $table_class = '';
    } else {
        $view = 'not-image';
        $table_class = $view;
    }
    return '
	<p class="media-types"><label><input type="radio" name="media_type" value="image" id="image-only"' . checked('image-only', $view, false) . ' /> ' . __('Image') . '</label> &nbsp; &nbsp; <label><input type="radio" name="media_type" value="generic" id="not-image"' . checked('not-image', $view, false) . ' /> ' . __('Audio, Video, or Other File') . '</label></p>
	<p class="media-types media-types-required-info">' . wp_required_field_message() . '</p>
	<table class="describe ' . $table_class . '"><tbody>
		<tr>
			<th scope="row" class="label" style="width:130px;">
				<label for="src"><span class="alignleft">' . __('URL') . '</span> ' . wp_required_field_indicator() . '</label>
				<span class="alignright" id="status_img"></span>
			</th>
			<td class="field"><input id="src" name="src" value="" type="text" required onblur="addExtImage.getImageData()" /></td>
		</tr>

		<tr>
			<th scope="row" class="label">
				<label for="title"><span class="alignleft">' . __('Title') . '</span> ' . wp_required_field_indicator() . '</label>
			</th>
			<td class="field"><input id="title" name="title" value="" type="text" required /></td>
		</tr>

		<tr class="not-image"><td></td><td><p class="help">' . __('Link text, e.g. &#8220;Ransom Demands (PDF)&#8221;') . '</p></td></tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="alt"><span class="alignleft">' . __('Alternative Text') . '</span> ' . wp_required_field_indicator() . '</label>
			</th>
			<td class="field"><input id="alt" name="alt" value="" type="text" required />
			<p class="help">' . __('Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;') . '</p></td>
		</tr>
		' . $caption . '
		<tr class="align image-only">
			<th scope="row" class="label"><p><label for="align">' . __('Alignment') . '</label></p></th>
			<td class="field">
				<input name="align" id="align-none" value="none" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (('none' === $default_align) ? ' checked="checked"' : '') . ' />
				<label for="align-none" class="align image-align-none-label">' . __('None') . '</label>
				<input name="align" id="align-left" value="left" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (('left' === $default_align) ? ' checked="checked"' : '') . ' />
				<label for="align-left" class="align image-align-left-label">' . __('Left') . '</label>
				<input name="align" id="align-center" value="center" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (('center' === $default_align) ? ' checked="checked"' : '') . ' />
				<label for="align-center" class="align image-align-center-label">' . __('Center') . '</label>
				<input name="align" id="align-right" value="right" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (('right' === $default_align) ? ' checked="checked"' : '') . ' />
				<label for="align-right" class="align image-align-right-label">' . __('Right') . '</label>
			</td>
		</tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="url"><span class="alignleft">' . __('Link Image To:') . '</span></label>
			</th>
			<td class="field"><input id="url" name="url" value="" type="text" /><br />

			<button type="button" class="button" value="" onclick="document.forms[0].url.value=null">' . __('None') . '</button>
			<button type="button" class="button" value="" onclick="document.forms[0].url.value=document.forms[0].src.value">' . __('Link to image') . '</button>
			<p class="help">' . __('Enter a link URL or click above for presets.') . '</p></td>
		</tr>
		<tr class="image-only">
			<td></td>
			<td>
				<input type="button" class="button" id="go_button" style="color:#bbb;" onclick="addExtImage.insert()" value="' . esc_attr__('Insert into Post') . '" />
			</td>
		</tr>
		<tr class="not-image">
			<td></td>
			<td>
				' . get_submit_button(__('Insert into Post'), '', 'insertonlybutton', false) . '
			</td>
		</tr>
	</tbody></table>';
}

WordPress Version: 5.5

/**
 * Creates the form for external url
 *
 * @since 2.7.0
 *
 * @param string $default_view
 * @return string the form html
 */
function wp_media_insert_url_form($default_view = 'image')
{
    /** This filter is documented in wp-admin/includes/media.php */
    if (!apply_filters('disable_captions', '')) {
        $caption = '
		<tr class="image-only">
			<th scope="row" class="label">
				<label for="caption"><span class="alignleft">' . __('Image Caption') . '</span></label>
			</th>
			<td class="field"><textarea id="caption" name="caption"></textarea></td>
		</tr>';
    } else {
        $caption = '';
    }
    $default_align = get_option('image_default_align');
    if (empty($default_align)) {
        $default_align = 'none';
    }
    if ('image' === $default_view) {
        $view = 'image-only';
        $table_class = '';
    } else {
        $view = 'not-image';
        $table_class = $view;
    }
    return '
	<p class="media-types"><label><input type="radio" name="media_type" value="image" id="image-only"' . checked('image-only', $view, false) . ' /> ' . __('Image') . '</label> &nbsp; &nbsp; <label><input type="radio" name="media_type" value="generic" id="not-image"' . checked('not-image', $view, false) . ' /> ' . __('Audio, Video, or Other File') . '</label></p>
	<p class="media-types media-types-required-info">' . sprintf(__('Required fields are marked %s'), '<span class="required">*</span>') . '</p>
	<table class="describe ' . $table_class . '"><tbody>
		<tr>
			<th scope="row" class="label" style="width:130px;">
				<label for="src"><span class="alignleft">' . __('URL') . '</span> <span class="required">*</span></label>
				<span class="alignright" id="status_img"></span>
			</th>
			<td class="field"><input id="src" name="src" value="" type="text" required onblur="addExtImage.getImageData()" /></td>
		</tr>

		<tr>
			<th scope="row" class="label">
				<label for="title"><span class="alignleft">' . __('Title') . '</span> <span class="required">*</span></label>
			</th>
			<td class="field"><input id="title" name="title" value="" type="text" required /></td>
		</tr>

		<tr class="not-image"><td></td><td><p class="help">' . __('Link text, e.g. &#8220;Ransom Demands (PDF)&#8221;') . '</p></td></tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="alt"><span class="alignleft">' . __('Alternative Text') . '</span></label>
			</th>
			<td class="field"><input id="alt" name="alt" value="" type="text" required />
			<p class="help">' . __('Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;') . '</p></td>
		</tr>
		' . $caption . '
		<tr class="align image-only">
			<th scope="row" class="label"><p><label for="align">' . __('Alignment') . '</label></p></th>
			<td class="field">
				<input name="align" id="align-none" value="none" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (('none' === $default_align) ? ' checked="checked"' : '') . ' />
				<label for="align-none" class="align image-align-none-label">' . __('None') . '</label>
				<input name="align" id="align-left" value="left" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (('left' === $default_align) ? ' checked="checked"' : '') . ' />
				<label for="align-left" class="align image-align-left-label">' . __('Left') . '</label>
				<input name="align" id="align-center" value="center" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (('center' === $default_align) ? ' checked="checked"' : '') . ' />
				<label for="align-center" class="align image-align-center-label">' . __('Center') . '</label>
				<input name="align" id="align-right" value="right" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (('right' === $default_align) ? ' checked="checked"' : '') . ' />
				<label for="align-right" class="align image-align-right-label">' . __('Right') . '</label>
			</td>
		</tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="url"><span class="alignleft">' . __('Link Image To:') . '</span></label>
			</th>
			<td class="field"><input id="url" name="url" value="" type="text" /><br />

			<button type="button" class="button" value="" onclick="document.forms[0].url.value=null">' . __('None') . '</button>
			<button type="button" class="button" value="" onclick="document.forms[0].url.value=document.forms[0].src.value">' . __('Link to image') . '</button>
			<p class="help">' . __('Enter a link URL or click above for presets.') . '</p></td>
		</tr>
		<tr class="image-only">
			<td></td>
			<td>
				<input type="button" class="button" id="go_button" style="color:#bbb;" onclick="addExtImage.insert()" value="' . esc_attr__('Insert into Post') . '" />
			</td>
		</tr>
		<tr class="not-image">
			<td></td>
			<td>
				' . get_submit_button(__('Insert into Post'), '', 'insertonlybutton', false) . '
			</td>
		</tr>
	</tbody></table>';
}

WordPress Version: 5.4

/**
 * Creates the form for external url
 *
 * @since 2.7.0
 *
 * @param string $default_view
 * @return string the form html
 */
function wp_media_insert_url_form($default_view = 'image')
{
    /** This filter is documented in wp-admin/includes/media.php */
    if (!apply_filters('disable_captions', '')) {
        $caption = '
		<tr class="image-only">
			<th scope="row" class="label">
				<label for="caption"><span class="alignleft">' . __('Image Caption') . '</span></label>
			</th>
			<td class="field"><textarea id="caption" name="caption"></textarea></td>
		</tr>';
    } else {
        $caption = '';
    }
    $default_align = get_option('image_default_align');
    if (empty($default_align)) {
        $default_align = 'none';
    }
    if ('image' == $default_view) {
        $view = 'image-only';
        $table_class = '';
    } else {
        $view = 'not-image';
        $table_class = $view;
    }
    return '
	<p class="media-types"><label><input type="radio" name="media_type" value="image" id="image-only"' . checked('image-only', $view, false) . ' /> ' . __('Image') . '</label> &nbsp; &nbsp; <label><input type="radio" name="media_type" value="generic" id="not-image"' . checked('not-image', $view, false) . ' /> ' . __('Audio, Video, or Other File') . '</label></p>
	<p class="media-types media-types-required-info">' . sprintf(__('Required fields are marked %s'), '<span class="required">*</span>') . '</p>
	<table class="describe ' . $table_class . '"><tbody>
		<tr>
			<th scope="row" class="label" style="width:130px;">
				<label for="src"><span class="alignleft">' . __('URL') . '</span> <span class="required">*</span></label>
				<span class="alignright" id="status_img"></span>
			</th>
			<td class="field"><input id="src" name="src" value="" type="text" required onblur="addExtImage.getImageData()" /></td>
		</tr>

		<tr>
			<th scope="row" class="label">
				<label for="title"><span class="alignleft">' . __('Title') . '</span> <span class="required">*</span></label>
			</th>
			<td class="field"><input id="title" name="title" value="" type="text" required /></td>
		</tr>

		<tr class="not-image"><td></td><td><p class="help">' . __('Link text, e.g. &#8220;Ransom Demands (PDF)&#8221;') . '</p></td></tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="alt"><span class="alignleft">' . __('Alternative Text') . '</span></label>
			</th>
			<td class="field"><input id="alt" name="alt" value="" type="text" required />
			<p class="help">' . __('Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;') . '</p></td>
		</tr>
		' . $caption . '
		<tr class="align image-only">
			<th scope="row" class="label"><p><label for="align">' . __('Alignment') . '</label></p></th>
			<td class="field">
				<input name="align" id="align-none" value="none" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (('none' === $default_align) ? ' checked="checked"' : '') . ' />
				<label for="align-none" class="align image-align-none-label">' . __('None') . '</label>
				<input name="align" id="align-left" value="left" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (('left' === $default_align) ? ' checked="checked"' : '') . ' />
				<label for="align-left" class="align image-align-left-label">' . __('Left') . '</label>
				<input name="align" id="align-center" value="center" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (('center' === $default_align) ? ' checked="checked"' : '') . ' />
				<label for="align-center" class="align image-align-center-label">' . __('Center') . '</label>
				<input name="align" id="align-right" value="right" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (('right' === $default_align) ? ' checked="checked"' : '') . ' />
				<label for="align-right" class="align image-align-right-label">' . __('Right') . '</label>
			</td>
		</tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="url"><span class="alignleft">' . __('Link Image To:') . '</span></label>
			</th>
			<td class="field"><input id="url" name="url" value="" type="text" /><br />

			<button type="button" class="button" value="" onclick="document.forms[0].url.value=null">' . __('None') . '</button>
			<button type="button" class="button" value="" onclick="document.forms[0].url.value=document.forms[0].src.value">' . __('Link to image') . '</button>
			<p class="help">' . __('Enter a link URL or click above for presets.') . '</p></td>
		</tr>
		<tr class="image-only">
			<td></td>
			<td>
				<input type="button" class="button" id="go_button" style="color:#bbb;" onclick="addExtImage.insert()" value="' . esc_attr__('Insert into Post') . '" />
			</td>
		</tr>
		<tr class="not-image">
			<td></td>
			<td>
				' . get_submit_button(__('Insert into Post'), '', 'insertonlybutton', false) . '
			</td>
		</tr>
	</tbody></table>';
}

WordPress Version: 5.3

/**
 * Creates the form for external url
 *
 * @since 2.7.0
 *
 * @param string $default_view
 * @return string the form html
 */
function wp_media_insert_url_form($default_view = 'image')
{
    /** This filter is documented in wp-admin/includes/media.php */
    if (!apply_filters('disable_captions', '')) {
        $caption = '
		<tr class="image-only">
			<th scope="row" class="label">
				<label for="caption"><span class="alignleft">' . __('Image Caption') . '</span></label>
			</th>
			<td class="field"><textarea id="caption" name="caption"></textarea></td>
		</tr>';
    } else {
        $caption = '';
    }
    $default_align = get_option('image_default_align');
    if (empty($default_align)) {
        $default_align = 'none';
    }
    if ('image' == $default_view) {
        $view = 'image-only';
        $table_class = '';
    } else {
        $view = 'not-image';
        $table_class = $view;
    }
    return '
	<p class="media-types"><label><input type="radio" name="media_type" value="image" id="image-only"' . checked('image-only', $view, false) . ' /> ' . __('Image') . '</label> &nbsp; &nbsp; <label><input type="radio" name="media_type" value="generic" id="not-image"' . checked('not-image', $view, false) . ' /> ' . __('Audio, Video, or Other File') . '</label></p>
	<p class="media-types media-types-required-info">' . sprintf(__('Required fields are marked %s'), '<span class="required">*</span>') . '</p>
	<table class="describe ' . $table_class . '"><tbody>
		<tr>
			<th scope="row" class="label" style="width:130px;">
				<label for="src"><span class="alignleft">' . __('URL') . '</span> <span class="required">*</span></label>
				<span class="alignright" id="status_img"></span>
			</th>
			<td class="field"><input id="src" name="src" value="" type="text" required onblur="addExtImage.getImageData()" /></td>
		</tr>

		<tr>
			<th scope="row" class="label">
				<label for="title"><span class="alignleft">' . __('Title') . '</span> <span class="required">*</span></label>
			</th>
			<td class="field"><input id="title" name="title" value="" type="text" required /></td>
		</tr>

		<tr class="not-image"><td></td><td><p class="help">' . __('Link text, e.g. &#8220;Ransom Demands (PDF)&#8221;') . '</p></td></tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="alt"><span class="alignleft">' . __('Alternative Text') . '</span></label>
			</th>
			<td class="field"><input id="alt" name="alt" value="" type="text" required />
			<p class="help">' . __('Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;') . '</p></td>
		</tr>
		' . $caption . '
		<tr class="align image-only">
			<th scope="row" class="label"><p><label for="align">' . __('Alignment') . '</label></p></th>
			<td class="field">
				<input name="align" id="align-none" value="none" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'none') ? ' checked="checked"' : '') . ' />
				<label for="align-none" class="align image-align-none-label">' . __('None') . '</label>
				<input name="align" id="align-left" value="left" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'left') ? ' checked="checked"' : '') . ' />
				<label for="align-left" class="align image-align-left-label">' . __('Left') . '</label>
				<input name="align" id="align-center" value="center" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'center') ? ' checked="checked"' : '') . ' />
				<label for="align-center" class="align image-align-center-label">' . __('Center') . '</label>
				<input name="align" id="align-right" value="right" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'right') ? ' checked="checked"' : '') . ' />
				<label for="align-right" class="align image-align-right-label">' . __('Right') . '</label>
			</td>
		</tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="url"><span class="alignleft">' . __('Link Image To:') . '</span></label>
			</th>
			<td class="field"><input id="url" name="url" value="" type="text" /><br />

			<button type="button" class="button" value="" onclick="document.forms[0].url.value=null">' . __('None') . '</button>
			<button type="button" class="button" value="" onclick="document.forms[0].url.value=document.forms[0].src.value">' . __('Link to image') . '</button>
			<p class="help">' . __('Enter a link URL or click above for presets.') . '</p></td>
		</tr>
		<tr class="image-only">
			<td></td>
			<td>
				<input type="button" class="button" id="go_button" style="color:#bbb;" onclick="addExtImage.insert()" value="' . esc_attr__('Insert into Post') . '" />
			</td>
		</tr>
		<tr class="not-image">
			<td></td>
			<td>
				' . get_submit_button(__('Insert into Post'), '', 'insertonlybutton', false) . '
			</td>
		</tr>
	</tbody></table>';
}

WordPress Version: 5.1

/**
 * Creates the form for external url
 *
 * @since 2.7.0
 *
 * @param string $default_view
 * @return string the form html
 */
function wp_media_insert_url_form($default_view = 'image')
{
    /** This filter is documented in wp-admin/includes/media.php */
    if (!apply_filters('disable_captions', '')) {
        $caption = '
		<tr class="image-only">
			<th scope="row" class="label">
				<label for="caption"><span class="alignleft">' . __('Image Caption') . '</span></label>
			</th>
			<td class="field"><textarea id="caption" name="caption"></textarea></td>
		</tr>
';
    } else {
        $caption = '';
    }
    $default_align = get_option('image_default_align');
    if (empty($default_align)) {
        $default_align = 'none';
    }
    if ('image' == $default_view) {
        $view = 'image-only';
        $table_class = '';
    } else {
        $view = $table_class = 'not-image';
    }
    return '
	<p class="media-types"><label><input type="radio" name="media_type" value="image" id="image-only"' . checked('image-only', $view, false) . ' /> ' . __('Image') . '</label> &nbsp; &nbsp; <label><input type="radio" name="media_type" value="generic" id="not-image"' . checked('not-image', $view, false) . ' /> ' . __('Audio, Video, or Other File') . '</label></p>
	<p class="media-types media-types-required-info">' . sprintf(__('Required fields are marked %s'), '<span class="required">*</span>') . '</p>
	<table class="describe ' . $table_class . '"><tbody>
		<tr>
			<th scope="row" class="label" style="width:130px;">
				<label for="src"><span class="alignleft">' . __('URL') . '</span> <span class="required">*</span></label>
				<span class="alignright" id="status_img"></span>
			</th>
			<td class="field"><input id="src" name="src" value="" type="text" required onblur="addExtImage.getImageData()" /></td>
		</tr>

		<tr>
			<th scope="row" class="label">
				<label for="title"><span class="alignleft">' . __('Title') . '</span> <span class="required">*</span></label>
			</th>
			<td class="field"><input id="title" name="title" value="" type="text" required /></td>
		</tr>

		<tr class="not-image"><td></td><td><p class="help">' . __('Link text, e.g. &#8220;Ransom Demands (PDF)&#8221;') . '</p></td></tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="alt"><span class="alignleft">' . __('Alternative Text') . '</span></label>
			</th>
			<td class="field"><input id="alt" name="alt" value="" type="text" required />
			<p class="help">' . __('Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;') . '</p></td>
		</tr>
		' . $caption . '
		<tr class="align image-only">
			<th scope="row" class="label"><p><label for="align">' . __('Alignment') . '</label></p></th>
			<td class="field">
				<input name="align" id="align-none" value="none" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'none') ? ' checked="checked"' : '') . ' />
				<label for="align-none" class="align image-align-none-label">' . __('None') . '</label>
				<input name="align" id="align-left" value="left" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'left') ? ' checked="checked"' : '') . ' />
				<label for="align-left" class="align image-align-left-label">' . __('Left') . '</label>
				<input name="align" id="align-center" value="center" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'center') ? ' checked="checked"' : '') . ' />
				<label for="align-center" class="align image-align-center-label">' . __('Center') . '</label>
				<input name="align" id="align-right" value="right" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'right') ? ' checked="checked"' : '') . ' />
				<label for="align-right" class="align image-align-right-label">' . __('Right') . '</label>
			</td>
		</tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="url"><span class="alignleft">' . __('Link Image To:') . '</span></label>
			</th>
			<td class="field"><input id="url" name="url" value="" type="text" /><br />

			<button type="button" class="button" value="" onclick="document.forms[0].url.value=null">' . __('None') . '</button>
			<button type="button" class="button" value="" onclick="document.forms[0].url.value=document.forms[0].src.value">' . __('Link to image') . '</button>
			<p class="help">' . __('Enter a link URL or click above for presets.') . '</p></td>
		</tr>
		<tr class="image-only">
			<td></td>
			<td>
				<input type="button" class="button" id="go_button" style="color:#bbb;" onclick="addExtImage.insert()" value="' . esc_attr__('Insert into Post') . '" />
			</td>
		</tr>
		<tr class="not-image">
			<td></td>
			<td>
				' . get_submit_button(__('Insert into Post'), '', 'insertonlybutton', false) . '
			</td>
		</tr>
	</tbody></table>
';
}

WordPress Version: 4.7

/**
 * Creates the form for external url
 *
 * @since 2.7.0
 *
 * @param string $default_view
 * @return string the form html
 */
function wp_media_insert_url_form($default_view = 'image')
{
    /** This filter is documented in wp-admin/includes/media.php */
    if (!apply_filters('disable_captions', '')) {
        $caption = '
		<tr class="image-only">
			<th scope="row" class="label">
				<label for="caption"><span class="alignleft">' . __('Image Caption') . '</span></label>
			</th>
			<td class="field"><textarea id="caption" name="caption"></textarea></td>
		</tr>
';
    } else {
        $caption = '';
    }
    $default_align = get_option('image_default_align');
    if (empty($default_align)) {
        $default_align = 'none';
    }
    if ('image' == $default_view) {
        $view = 'image-only';
        $table_class = '';
    } else {
        $view = $table_class = 'not-image';
    }
    return '
	<p class="media-types"><label><input type="radio" name="media_type" value="image" id="image-only"' . checked('image-only', $view, false) . ' /> ' . __('Image') . '</label> &nbsp; &nbsp; <label><input type="radio" name="media_type" value="generic" id="not-image"' . checked('not-image', $view, false) . ' /> ' . __('Audio, Video, or Other File') . '</label></p>
	<p class="media-types media-types-required-info">' . sprintf(__('Required fields are marked %s'), '<span class="required">*</span>') . '</p>
	<table class="describe ' . $table_class . '"><tbody>
		<tr>
			<th scope="row" class="label" style="width:130px;">
				<label for="src"><span class="alignleft">' . __('URL') . '</span> <span class="required">*</span></label>
				<span class="alignright" id="status_img"></span>
			</th>
			<td class="field"><input id="src" name="src" value="" type="text" required aria-required="true" onblur="addExtImage.getImageData()" /></td>
		</tr>

		<tr>
			<th scope="row" class="label">
				<label for="title"><span class="alignleft">' . __('Title') . '</span> <span class="required">*</span></label>
			</th>
			<td class="field"><input id="title" name="title" value="" type="text" required aria-required="true" /></td>
		</tr>

		<tr class="not-image"><td></td><td><p class="help">' . __('Link text, e.g. &#8220;Ransom Demands (PDF)&#8221;') . '</p></td></tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="alt"><span class="alignleft">' . __('Alternative Text') . '</span></label>
			</th>
			<td class="field"><input id="alt" name="alt" value="" type="text" aria-required="true" />
			<p class="help">' . __('Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;') . '</p></td>
		</tr>
		' . $caption . '
		<tr class="align image-only">
			<th scope="row" class="label"><p><label for="align">' . __('Alignment') . '</label></p></th>
			<td class="field">
				<input name="align" id="align-none" value="none" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'none') ? ' checked="checked"' : '') . ' />
				<label for="align-none" class="align image-align-none-label">' . __('None') . '</label>
				<input name="align" id="align-left" value="left" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'left') ? ' checked="checked"' : '') . ' />
				<label for="align-left" class="align image-align-left-label">' . __('Left') . '</label>
				<input name="align" id="align-center" value="center" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'center') ? ' checked="checked"' : '') . ' />
				<label for="align-center" class="align image-align-center-label">' . __('Center') . '</label>
				<input name="align" id="align-right" value="right" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'right') ? ' checked="checked"' : '') . ' />
				<label for="align-right" class="align image-align-right-label">' . __('Right') . '</label>
			</td>
		</tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="url"><span class="alignleft">' . __('Link Image To:') . '</span></label>
			</th>
			<td class="field"><input id="url" name="url" value="" type="text" /><br />

			<button type="button" class="button" value="" onclick="document.forms[0].url.value=null">' . __('None') . '</button>
			<button type="button" class="button" value="" onclick="document.forms[0].url.value=document.forms[0].src.value">' . __('Link to image') . '</button>
			<p class="help">' . __('Enter a link URL or click above for presets.') . '</p></td>
		</tr>
		<tr class="image-only">
			<td></td>
			<td>
				<input type="button" class="button" id="go_button" style="color:#bbb;" onclick="addExtImage.insert()" value="' . esc_attr__('Insert into Post') . '" />
			</td>
		</tr>
		<tr class="not-image">
			<td></td>
			<td>
				' . get_submit_button(__('Insert into Post'), '', 'insertonlybutton', false) . '
			</td>
		</tr>
	</tbody></table>
';
}

WordPress Version: 4.5

/**
 * Creates the form for external url
 *
 * @since 2.7.0
 *
 * @param string $default_view
 * @return string the form html
 */
function wp_media_insert_url_form($default_view = 'image')
{
    /** This filter is documented in wp-admin/includes/media.php */
    if (!apply_filters('disable_captions', '')) {
        $caption = '
		<tr class="image-only">
			<th scope="row" class="label">
				<label for="caption"><span class="alignleft">' . __('Image Caption') . '</span></label>
			</th>
			<td class="field"><textarea id="caption" name="caption"></textarea></td>
		</tr>
';
    } else {
        $caption = '';
    }
    $default_align = get_option('image_default_align');
    if (empty($default_align)) {
        $default_align = 'none';
    }
    if ('image' == $default_view) {
        $view = 'image-only';
        $table_class = '';
    } else {
        $view = $table_class = 'not-image';
    }
    return '
	<p class="media-types"><label><input type="radio" name="media_type" value="image" id="image-only"' . checked('image-only', $view, false) . ' /> ' . __('Image') . '</label> &nbsp; &nbsp; <label><input type="radio" name="media_type" value="generic" id="not-image"' . checked('not-image', $view, false) . ' /> ' . __('Audio, Video, or Other File') . '</label></p>
	<p class="media-types media-types-required-info">' . sprintf(__('Required fields are marked %s'), '<span class="required">*</span>') . '</p>
	<table class="describe ' . $table_class . '"><tbody>
		<tr>
			<th scope="row" class="label" style="width:130px;">
				<label for="src"><span class="alignleft">' . __('URL') . '</span> <span class="required">*</span></label>
				<span class="alignright" id="status_img"></span>
			</th>
			<td class="field"><input id="src" name="src" value="" type="text" required aria-required="true" onblur="addExtImage.getImageData()" /></td>
		</tr>

		<tr>
			<th scope="row" class="label">
				<label for="title"><span class="alignleft">' . __('Title') . '</span> <span class="required">*</span></label>
			</th>
			<td class="field"><input id="title" name="title" value="" type="text" required aria-required="true" /></td>
		</tr>

		<tr class="not-image"><td></td><td><p class="help">' . __('Link text, e.g. &#8220;Ransom Demands (PDF)&#8221;') . '</p></td></tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="alt"><span class="alignleft">' . __('Alternative Text') . '</span></label>
			</th>
			<td class="field"><input id="alt" name="alt" value="" type="text" aria-required="true" />
			<p class="help">' . __('Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;') . '</p></td>
		</tr>
		' . $caption . '
		<tr class="align image-only">
			<th scope="row" class="label"><p><label for="align">' . __('Alignment') . '</label></p></th>
			<td class="field">
				<input name="align" id="align-none" value="none" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'none') ? ' checked="checked"' : '') . ' />
				<label for="align-none" class="align image-align-none-label">' . __('None') . '</label>
				<input name="align" id="align-left" value="left" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'left') ? ' checked="checked"' : '') . ' />
				<label for="align-left" class="align image-align-left-label">' . __('Left') . '</label>
				<input name="align" id="align-center" value="center" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'center') ? ' checked="checked"' : '') . ' />
				<label for="align-center" class="align image-align-center-label">' . __('Center') . '</label>
				<input name="align" id="align-right" value="right" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'right') ? ' checked="checked"' : '') . ' />
				<label for="align-right" class="align image-align-right-label">' . __('Right') . '</label>
			</td>
		</tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="url"><span class="alignleft">' . __('Link Image To:') . '</span></label>
			</th>
			<td class="field"><input id="url" name="url" value="" type="text" /><br />

			<button type="button" class="button" value="" onclick="document.forms[0].url.value=null">' . __('None') . '</button>
			<button type="button" class="button" value="" onclick="document.forms[0].url.value=document.forms[0].src.value">' . __('Link to image') . '</button>
			<p class="help">' . __('Enter a link URL or click above for presets.') . '</p></td>
		</tr>
		<tr class="image-only">
			<td></td>
			<td>
				<input type="button" class="button" id="go_button" style="color:#bbb;" onclick="addExtImage.insert()" value="' . esc_attr__('Insert into Post') . '" />
			</td>
		</tr>
		<tr class="not-image">
			<td></td>
			<td>
				' . get_submit_button(__('Insert into Post'), 'button', 'insertonlybutton', false) . '
			</td>
		</tr>
	</tbody></table>
';
}

WordPress Version: 3.9

/**
 * Creates the form for external url
 *
 * @since 2.7.0
 *
 * @param string $default_view
 * @return string the form html
 */
function wp_media_insert_url_form($default_view = 'image')
{
    /** This filter is documented in wp-admin/includes/media.php */
    if (!apply_filters('disable_captions', '')) {
        $caption = '
		<tr class="image-only">
			<th scope="row" class="label">
				<label for="caption"><span class="alignleft">' . __('Image Caption') . '</span></label>
			</th>
			<td class="field"><textarea id="caption" name="caption"></textarea></td>
		</tr>
';
    } else {
        $caption = '';
    }
    $default_align = get_option('image_default_align');
    if (empty($default_align)) {
        $default_align = 'none';
    }
    if ('image' == $default_view) {
        $view = 'image-only';
        $table_class = '';
    } else {
        $view = $table_class = 'not-image';
    }
    return '
	<p class="media-types"><label><input type="radio" name="media_type" value="image" id="image-only"' . checked('image-only', $view, false) . ' /> ' . __('Image') . '</label> &nbsp; &nbsp; <label><input type="radio" name="media_type" value="generic" id="not-image"' . checked('not-image', $view, false) . ' /> ' . __('Audio, Video, or Other File') . '</label></p>
	<table class="describe ' . $table_class . '"><tbody>
		<tr>
			<th scope="row" class="label" style="width:130px;">
				<label for="src"><span class="alignleft">' . __('URL') . '</span></label>
				<span class="alignright"><abbr id="status_img" title="required" class="required">*</abbr></span>
			</th>
			<td class="field"><input id="src" name="src" value="" type="text" aria-required="true" onblur="addExtImage.getImageData()" /></td>
		</tr>

		<tr>
			<th scope="row" class="label">
				<label for="title"><span class="alignleft">' . __('Title') . '</span></label>
				<span class="alignright"><abbr title="required" class="required">*</abbr></span>
			</th>
			<td class="field"><input id="title" name="title" value="" type="text" aria-required="true" /></td>
		</tr>

		<tr class="not-image"><td></td><td><p class="help">' . __('Link text, e.g. &#8220;Ransom Demands (PDF)&#8221;') . '</p></td></tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="alt"><span class="alignleft">' . __('Alternative Text') . '</span></label>
			</th>
			<td class="field"><input id="alt" name="alt" value="" type="text" aria-required="true" />
			<p class="help">' . __('Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;') . '</p></td>
		</tr>
		' . $caption . '
		<tr class="align image-only">
			<th scope="row" class="label"><p><label for="align">' . __('Alignment') . '</label></p></th>
			<td class="field">
				<input name="align" id="align-none" value="none" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'none') ? ' checked="checked"' : '') . ' />
				<label for="align-none" class="align image-align-none-label">' . __('None') . '</label>
				<input name="align" id="align-left" value="left" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'left') ? ' checked="checked"' : '') . ' />
				<label for="align-left" class="align image-align-left-label">' . __('Left') . '</label>
				<input name="align" id="align-center" value="center" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'center') ? ' checked="checked"' : '') . ' />
				<label for="align-center" class="align image-align-center-label">' . __('Center') . '</label>
				<input name="align" id="align-right" value="right" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'right') ? ' checked="checked"' : '') . ' />
				<label for="align-right" class="align image-align-right-label">' . __('Right') . '</label>
			</td>
		</tr>

		<tr class="image-only">
			<th scope="row" class="label">
				<label for="url"><span class="alignleft">' . __('Link Image To:') . '</span></label>
			</th>
			<td class="field"><input id="url" name="url" value="" type="text" /><br />

			<button type="button" class="button" value="" onclick="document.forms[0].url.value=null">' . __('None') . '</button>
			<button type="button" class="button" value="" onclick="document.forms[0].url.value=document.forms[0].src.value">' . __('Link to image') . '</button>
			<p class="help">' . __('Enter a link URL or click above for presets.') . '</p></td>
		</tr>
		<tr class="image-only">
			<td></td>
			<td>
				<input type="button" class="button" id="go_button" style="color:#bbb;" onclick="addExtImage.insert()" value="' . esc_attr__('Insert into Post') . '" />
			</td>
		</tr>
		<tr class="not-image">
			<td></td>
			<td>
				' . get_submit_button(__('Insert into Post'), 'button', 'insertonlybutton', false) . '
			</td>
		</tr>
	</tbody></table>
';
}

WordPress Version: 3.7

/**
 * Creates the form for external url
 *
 * @since 2.7.0
 *
 * @param string $default_view
 * @return string the form html
 */
function wp_media_insert_url_form($default_view = 'image')
{
    if (!apply_filters('disable_captions', '')) {
        $caption = '
		<tr class="image-only">
			<th valign="top" scope="row" class="label">
				<label for="caption"><span class="alignleft">' . __('Image Caption') . '</span></label>
			</th>
			<td class="field"><textarea id="caption" name="caption"></textarea></td>
		</tr>
';
    } else {
        $caption = '';
    }
    $default_align = get_option('image_default_align');
    if (empty($default_align)) {
        $default_align = 'none';
    }
    if ('image' == $default_view) {
        $view = 'image-only';
        $table_class = '';
    } else {
        $view = $table_class = 'not-image';
    }
    return '
	<p class="media-types"><label><input type="radio" name="media_type" value="image" id="image-only"' . checked('image-only', $view, false) . ' /> ' . __('Image') . '</label> &nbsp; &nbsp; <label><input type="radio" name="media_type" value="generic" id="not-image"' . checked('not-image', $view, false) . ' /> ' . __('Audio, Video, or Other File') . '</label></p>
	<table class="describe ' . $table_class . '"><tbody>
		<tr>
			<th valign="top" scope="row" class="label" style="width:130px;">
				<label for="src"><span class="alignleft">' . __('URL') . '</span></label>
				<span class="alignright"><abbr id="status_img" title="required" class="required">*</abbr></span>
			</th>
			<td class="field"><input id="src" name="src" value="" type="text" aria-required="true" onblur="addExtImage.getImageData()" /></td>
		</tr>

		<tr>
			<th valign="top" scope="row" class="label">
				<label for="title"><span class="alignleft">' . __('Title') . '</span></label>
				<span class="alignright"><abbr title="required" class="required">*</abbr></span>
			</th>
			<td class="field"><input id="title" name="title" value="" type="text" aria-required="true" /></td>
		</tr>

		<tr class="not-image"><td></td><td><p class="help">' . __('Link text, e.g. &#8220;Ransom Demands (PDF)&#8221;') . '</p></td></tr>

		<tr class="image-only">
			<th valign="top" scope="row" class="label">
				<label for="alt"><span class="alignleft">' . __('Alternative Text') . '</span></label>
			</th>
			<td class="field"><input id="alt" name="alt" value="" type="text" aria-required="true" />
			<p class="help">' . __('Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;') . '</p></td>
		</tr>
		' . $caption . '
		<tr class="align image-only">
			<th valign="top" scope="row" class="label"><p><label for="align">' . __('Alignment') . '</label></p></th>
			<td class="field">
				<input name="align" id="align-none" value="none" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'none') ? ' checked="checked"' : '') . ' />
				<label for="align-none" class="align image-align-none-label">' . __('None') . '</label>
				<input name="align" id="align-left" value="left" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'left') ? ' checked="checked"' : '') . ' />
				<label for="align-left" class="align image-align-left-label">' . __('Left') . '</label>
				<input name="align" id="align-center" value="center" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'center') ? ' checked="checked"' : '') . ' />
				<label for="align-center" class="align image-align-center-label">' . __('Center') . '</label>
				<input name="align" id="align-right" value="right" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . (($default_align == 'right') ? ' checked="checked"' : '') . ' />
				<label for="align-right" class="align image-align-right-label">' . __('Right') . '</label>
			</td>
		</tr>

		<tr class="image-only">
			<th valign="top" scope="row" class="label">
				<label for="url"><span class="alignleft">' . __('Link Image To:') . '</span></label>
			</th>
			<td class="field"><input id="url" name="url" value="" type="text" /><br />

			<button type="button" class="button" value="" onclick="document.forms[0].url.value=null">' . __('None') . '</button>
			<button type="button" class="button" value="" onclick="document.forms[0].url.value=document.forms[0].src.value">' . __('Link to image') . '</button>
			<p class="help">' . __('Enter a link URL or click above for presets.') . '</p></td>
		</tr>
		<tr class="image-only">
			<td></td>
			<td>
				<input type="button" class="button" id="go_button" style="color:#bbb;" onclick="addExtImage.insert()" value="' . esc_attr__('Insert into Post') . '" />
			</td>
		</tr>
		<tr class="not-image">
			<td></td>
			<td>
				' . get_submit_button(__('Insert into Post'), 'button', 'insertonlybutton', false) . '
			</td>
		</tr>
	</tbody></table>
';
}