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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 |
|---|---|
| 1254 | |
| 1255 | /** |
| 1256 | * Filters the redirect fallback URL for when the provided redirect is not safe (local). |
| 1257 | * |
| 1258 | * @since 4.3.0 |
| 1259 | * |
| 1260 | * @param string $fallback_url The fallback URL to use by default. |
| 1261 | * @param int $status The redirect status. |
| 1262 | */ |
| 1263 | $location = wp_validate_redirect( $location, apply_filters( 'wp_safe_redirect_fallback', admin_url(), $status ) ); |
| 1264 | |
| 1265 | wp_redirect($location, $status); |
| 1266 | } |
| 1267 | endif; |
| 1268 | |
| 1269 | if ( !function_exists('wp_validate_redirect') ) : |
| 1270 | /** |
| 1271 | * Validates a URL for use in a redirect. |
| 1272 | * |