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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 |
|---|---|
| 52 | |
| 53 | /** |
| 54 | * Filter the maximum number of links allowed in a comment. |
| 55 | * |
| 56 | * @since 3.0.0 |
| 57 | * |
| 58 | * @param int $num_links The number of links allowed. |
| 59 | * @param string $url Comment author's URL. Included in allowed links total. |
| 60 | */ |
| 61 | $num_links = apply_filters( 'comment_max_links_url', $num_links, $url ); |
| 62 | |
| 63 | /* |
| 64 | * If the number of links in the comment exceeds the allowed amount, |
| 65 | * fail the check by returning false. |
| 66 | */ |
| 67 | if ( $num_links >= $max_links ) |
| 68 | return false; |
| 69 | } |
| 70 | |