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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 |
|---|---|
| 1122 | |
| 1123 | /** |
| 1124 | * Fires once the AJAX request has been validated or not. |
| 1125 | * |
| 1126 | * @since 2.1.0 |
| 1127 | * |
| 1128 | * @param string $action The AJAX nonce action. |
| 1129 | * @param bool $result Whether the AJAX request nonce was validated. |
| 1130 | */ |
| 1131 | do_action( 'check_ajax_referer', $action, $result ); |
| 1132 | |
| 1133 | return $result; |
| 1134 | } |
| 1135 | endif; |
| 1136 | |
| 1137 | if ( !function_exists('wp_redirect') ) : |
| 1138 | /** |
| 1139 | * Redirects to another page. |
| 1140 | * |