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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 |
|---|---|
| 722 | */ |
| 723 | function edit_post_link( $link = 'Edit This', $before = '', $after = '', $id = 0 ) { |
| 724 | if ( !$post = &get_post( $id ) ) |
| 725 | return; |
| 726 | |
| 727 | if ( !$url = get_edit_post_link( $post->ID ) ) |
| 728 | return; |
| 729 | |
| 730 | $link = '<a class="post-edit-link" href="' . $url . '" title="' . esc_attr( __( 'Edit post' ) ) . '">' . $link . '</a>'; |
| 731 | echo $before . apply_filters( 'edit_post_link', $link, $post->ID ) . $after; |
| 732 | } |
| 733 | |
| 734 | /** |
| 735 | * Retrieve edit comment link. |
| 736 | * |
| 737 | * @since 2.3.0 |
| 738 | * |
| 739 | * @param int $comment_id Optional. Comment ID. |
| 740 | * @return string |