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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 |
|---|---|
| 632 | $output .= wp_get_attachment_link($id, $size, true) . "\n"; |
| 633 | return $output; |
| 634 | } |
| 635 | |
| 636 | $itemtag = tag_escape($itemtag); |
| 637 | $captiontag = tag_escape($captiontag); |
| 638 | $columns = intval($columns); |
| 639 | $itemwidth = $columns > 0 ? floor(100/$columns) : 100; |
| 640 | |
| 641 | $output = apply_filters('gallery_style', " |
| 642 | <style type='text/css'> |
| 643 | .gallery { |
| 644 | margin: auto; |
| 645 | } |
| 646 | .gallery-item { |
| 647 | float: left; |
| 648 | margin-top: 10px; |
| 649 | text-align: center; |
| 650 | width: {$itemwidth}%; } |