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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 |
---|---|
915 | if ( $url ) { |
916 | /** |
917 | * Filters the URL returned by get_bloginfo(). |
918 | * |
919 | * @since 2.0.5 |
920 | * |
921 | * @param string $output The URL returned by bloginfo(). |
922 | * @param string $show Type of information requested. |
923 | */ |
924 | $output = apply_filters( 'bloginfo_url', $output, $show ); |
925 | } else { |
926 | /** |
927 | * Filters the site information returned by get_bloginfo(). |
928 | * |
929 | * @since 0.71 |
930 | * |
931 | * @param mixed $output The requested non-URL site information. |
932 | * @param string $show Type of information requested. |
933 | */ |