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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 |
|---|---|
| 729 | |
| 730 | $itemtag = tag_escape($itemtag); |
| 731 | $captiontag = tag_escape($captiontag); |
| 732 | $columns = intval($columns); |
| 733 | $itemwidth = $columns > 0 ? floor(100/$columns) : 100; |
| 734 | $float = $wp_locale->text_direction == 'rtl' ? 'right' : 'left'; |
| 735 | |
| 736 | $selector = "gallery-{$instance}"; |
| 737 | |
| 738 | $output = apply_filters('gallery_style', " |
| 739 | <style type='text/css'> |
| 740 | #{$selector} { |
| 741 | margin: auto; |
| 742 | } |
| 743 | #{$selector} .gallery-item { |
| 744 | float: {$float}; |
| 745 | margin-top: 10px; |
| 746 | text-align: center; |
| 747 | width: {$itemwidth}%; } |