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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 |
|---|---|
| 91 | |
| 92 | $comment->comment_content = format_to_edit( $comment->comment_content ); |
| 93 | /** |
| 94 | * Filter the comment content before editing. |
| 95 | * |
| 96 | * @since 2.0.0 |
| 97 | * |
| 98 | * @param string $comment->comment_content Comment content. |
| 99 | */ |
| 100 | $comment->comment_content = apply_filters( 'comment_edit_pre', $comment->comment_content ); |
| 101 | |
| 102 | $comment->comment_author = format_to_edit( $comment->comment_author ); |
| 103 | $comment->comment_author_email = format_to_edit( $comment->comment_author_email ); |
| 104 | $comment->comment_author_url = format_to_edit( $comment->comment_author_url ); |
| 105 | $comment->comment_author_url = esc_url($comment->comment_author_url); |
| 106 | |
| 107 | return $comment; |
| 108 | } |
| 109 | |