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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 |
---|---|
736 | $itemtag = tag_escape($itemtag); |
737 | $captiontag = tag_escape($captiontag); |
738 | $columns = intval($columns); |
739 | $itemwidth = $columns > 0 ? floor(100/$columns) : 100; |
740 | $float = is_rtl() ? 'right' : 'left'; |
741 |
|
742 | $selector = "gallery-{$instance}"; |
743 |
|
744 | $gallery_style = $gallery_div = ''; |
745 | if ( apply_filters( 'use_default_gallery_style', true ) ) |
746 | $gallery_style = " |
747 | <style type='text/css'> |
748 | #{$selector} { |
749 | margin: auto; |
750 | } |
751 | #{$selector} .gallery-item { |
752 | float: {$float}; |
753 | margin-top: 10px; |
754 | text-align: center; |