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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 |
---|---|
815 |
|
816 | $itemtag = tag_escape($itemtag); |
817 | $captiontag = tag_escape($captiontag); |
818 | $columns = intval($columns); |
819 | $itemwidth = $columns > 0 ? floor(100/$columns) : 100; |
820 | $float = is_rtl() ? 'right' : 'left'; |
821 |
|
822 | $selector = "gallery-{$instance}"; |
823 |
|
824 | $output = apply_filters('gallery_style', " |
825 | <style type='text/css'> |
826 | #{$selector} { |
827 | margin: auto; |
828 | } |
829 | #{$selector} .gallery-item { |
830 | float: {$float}; |
831 | margin-top: 10px; |
832 | text-align: center; |
833 | width: {$itemwidth}%; } |