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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 |
|---|---|
| 712 | $posts_columns['cb'] = '<input type="checkbox" />'; |
| 713 | $posts_columns['icon'] = ''; |
| 714 | $posts_columns['media'] = _c('File|media column header'); |
| 715 | $posts_columns['author'] = __('Author'); |
| 716 | //$posts_columns['tags'] = _c('Tags|media column header'); |
| 717 | $posts_columns['parent'] = _c('Attached to|media column header'); |
| 718 | $posts_columns['comments'] = '<div class="vers"><img alt="Comments" src="images/comment-grey-bubble.png" /></div>'; |
| 719 | //$posts_columns['comments'] = __('Comments'); |
| 720 | $posts_columns['date'] = _c('Date|media column header'); |
| 721 | $posts_columns = apply_filters('manage_media_columns', $posts_columns); |
| 722 | |
| 723 | return $posts_columns; |
| 724 | } |
| 725 | |
| 726 | /** |
| 727 | * {@internal Missing Short Description}} |
| 728 | * |
| 729 | * @since unknown |
| 730 | * |