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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.
This hook occurs 2 times in this file.
Line | Code |
---|---|
2914 |
|
2915 | /** |
2916 | * Filters the rel value that is added to URL matches converted to links. |
2917 | * |
2918 | * @since 5.3.0 |
2919 | * |
2920 | * @param string $rel The rel value. |
2921 | * @param string $url The matched URL being converted to a link tag. |
2922 | */ |
2923 | $rel = apply_filters( 'make_clickable_rel', $rel, $url ); |
2924 | $rel = esc_attr( $rel ); |
2925 |
|
2926 | return $matches[1] . "<a href=\"$url\" rel=\"$rel\">$url</a>" . $suffix; |
2927 | } |
2928 |
|
2929 | /** |
2930 | * Callback to convert URL match to HTML A element. |
2931 | * |
2932 | * This function was backported from 2.5.0 to 2.3.2. Regex callback for make_clickable(). |
Line | Code |
2955 | } |
2956 |
|
2957 | if ( 'comment_text' === current_filter() ) { |
2958 | $rel = 'nofollow ugc'; |
2959 | } else { |
2960 | $rel = 'nofollow'; |
2961 | } |
2962 |
|
2963 | /** This filter is documented in wp-includes/formatting.php */ |
2964 | $rel = apply_filters( 'make_clickable_rel', $rel, $dest ); |
2965 | $rel = esc_attr( $rel ); |
2966 |
|
2967 | return $matches[1] . "<a href=\"$dest\" rel=\"$rel\">$dest</a>$ret"; |
2968 | } |
2969 |
|
2970 | /** |
2971 | * Callback to convert email address match to HTML A element. |
2972 | * |
2973 | * This function was backported from 2.5.0 to 2.3.2. Regex callback for make_clickable(). |