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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.
| Line | Code |
|---|---|
| 758 | border: 2px solid #cfcfcf; |
| 759 | } |
| 760 | #{$selector} .gallery-caption { |
| 761 | margin-left: 0; |
| 762 | } |
| 763 | </style> |
| 764 | <!-- see gallery_shortcode() in wp-includes/media.php -->"; |
| 765 | $size_class = sanitize_html_class( $size ); |
| 766 | $gallery_div = "<div id='$selector' class='gallery galleryid-{$id} gallery-columns-{$columns} gallery-size-{$size_class}'>"; |
| 767 | $output = apply_filters( 'gallery_style', $gallery_style . "\n\t\t" . $gallery_div ); |
| 768 | |
| 769 | $i = 0; |
| 770 | foreach ( $attachments as $id => $attachment ) { |
| 771 | $link = isset($attr['link']) && 'file' == $attr['link'] ? wp_get_attachment_link($id, $size, false, false) : wp_get_attachment_link($id, $size, true, false); |
| 772 | |
| 773 | $output .= "<{$itemtag} class='gallery-item'>"; |
| 774 | $output .= " |
| 775 | <{$icontag} class='gallery-icon'> |
| 776 | $link |