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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 |
|---|---|
| 55 | * Filters the number of links found in a comment. |
| 56 | * |
| 57 | * @since 3.0.0 |
| 58 | * @since 4.7.0 Added the `$comment` parameter. |
| 59 | * |
| 60 | * @param int $num_links The number of links found. |
| 61 | * @param string $url Comment author's URL. Included in allowed links total. |
| 62 | * @param string $comment Content of the comment. |
| 63 | */ |
| 64 | $num_links = apply_filters( 'comment_max_links_url', $num_links, $url, $comment ); |
| 65 | |
| 66 | /* |
| 67 | * If the number of links in the comment exceeds the allowed amount, |
| 68 | * fail the check by returning false. |
| 69 | */ |
| 70 | if ( $num_links >= $max_links ) { |
| 71 | return false; |
| 72 | } |
| 73 | } |