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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 3 times in this file.
| Line | Code |
|---|---|
| 1636 | |
| 1637 | /** |
| 1638 | * Filters the media metadata. |
| 1639 | * |
| 1640 | * @since 2.5.0 |
| 1641 | * |
| 1642 | * @param string $media_dims The HTML markup containing the media dimensions. |
| 1643 | * @param WP_Post $post The WP_Post attachment object. |
| 1644 | */ |
| 1645 | $media_dims = apply_filters( 'media_meta', $media_dims, $post ); |
| 1646 | |
| 1647 | $image_edit_button = ''; |
| 1648 | |
| 1649 | if ( wp_attachment_is_image( $post->ID ) && wp_image_editor_supports( array( 'mime_type' => $post->post_mime_type ) ) ) { |
| 1650 | $nonce = wp_create_nonce( "image_editor-$post->ID" ); |
| 1651 | $image_edit_button = "<input type='button' id='imgedit-open-btn-$post->ID' onclick='imageEdit.open( $post->ID, \"$nonce\" )' class='button' value='" . esc_attr__( 'Edit Image' ) . "' /> <span class='spinner'></span>"; |
| 1652 | } |
| 1653 | |
| 1654 | $attachment_url = get_permalink( $attachment_id ); |
| Line | Code |
| 1905 | $form_fields['post_title'], |
| 1906 | $form_fields['post_excerpt'], |
| 1907 | $form_fields['post_content'], |
| 1908 | $form_fields['url'], |
| 1909 | $form_fields['menu_order'], |
| 1910 | $form_fields['image_url'] |
| 1911 | ); |
| 1912 | |
| 1913 | /** This filter is documented in wp-admin/includes/media.php */ |
| 1914 | $media_meta = apply_filters( 'media_meta', '', $post ); |
| 1915 | |
| 1916 | $defaults = array( |
| 1917 | 'input' => 'text', |
| 1918 | 'required' => false, |
| 1919 | 'value' => '', |
| 1920 | 'extra_rows' => array(), |
| 1921 | 'show_in_edit' => true, |
| 1922 | 'show_in_modal' => true, |
| 1923 | ); |
| Line | Code |
| 3254 | $filename = esc_html( wp_basename( $file ) ); |
| 3255 | |
| 3256 | $media_dims = ''; |
| 3257 | $meta = wp_get_attachment_metadata( $attachment_id ); |
| 3258 | |
| 3259 | if ( isset( $meta['width'], $meta['height'] ) ) { |
| 3260 | $media_dims .= "<span id='media-dims-$attachment_id'>{$meta['width']} × {$meta['height']}</span> "; |
| 3261 | } |
| 3262 | /** This filter is documented in wp-admin/includes/media.php */ |
| 3263 | $media_dims = apply_filters( 'media_meta', $media_dims, $post ); |
| 3264 | |
| 3265 | $att_url = wp_get_attachment_url( $attachment_id ); |
| 3266 | |
| 3267 | ?> |
| 3268 | <div class="misc-pub-section misc-pub-attachment"> |
| 3269 | <label for="attachment_url"><?php _e( 'File URL:' ); ?></label> |
| 3270 | <input type="text" class="widefat urlfield" readonly="readonly" name="attachment_url" id="attachment_url" value="<?php echo esc_attr( $att_url ); ?>" /> |
| 3271 | </div> |
| 3272 | <div class="misc-pub-section misc-pub-filename"> |