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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 |
|---|---|
| 1524 | |
| 1525 | /** |
| 1526 | * Filters the redirect fallback URL for when the provided redirect is not safe (local). |
| 1527 | * |
| 1528 | * @since 4.3.0 |
| 1529 | * |
| 1530 | * @param string $fallback_url The fallback URL to use by default. |
| 1531 | * @param int $status The HTTP response status code to use. |
| 1532 | */ |
| 1533 | $fallback_url = apply_filters( 'wp_safe_redirect_fallback', admin_url(), $status ); |
| 1534 | |
| 1535 | $location = wp_validate_redirect( $location, $fallback_url ); |
| 1536 | |
| 1537 | return wp_redirect( $location, $status, $x_redirect_by ); |
| 1538 | } |
| 1539 | endif; |
| 1540 | |
| 1541 | if ( ! function_exists( 'wp_validate_redirect' ) ) : |
| 1542 | /** |