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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 |
|---|---|
| 1121 | * Log debugging info to the error log. |
| 1122 | * |
| 1123 | * Enabled when WP_DEBUG_LOG is enabled (and WP_DEBUG, since according to |
| 1124 | * core, "WP_DEBUG_DISPLAY and WP_DEBUG_LOG perform no function unless |
| 1125 | * WP_DEBUG is true), but can be disabled via the akismet_debug_log filter. |
| 1126 | * |
| 1127 | * @param mixed $akismet_debug The data to log. |
| 1128 | */ |
| 1129 | public static function log( $akismet_debug ) { |
| 1130 | if ( apply_filters( 'akismet_debug_log', defined( 'WP_DEBUG' ) && WP_DEBUG && defined( 'WP_DEBUG_LOG' ) && WP_DEBUG_LOG ) ) { |
| 1131 | error_log( print_r( compact( 'akismet_debug' ), true ) ); |
| 1132 | } |
| 1133 | } |
| 1134 | |
| 1135 | public static function pre_check_pingback( $method ) { |
| 1136 | if ( $method !== 'pingback.ping' ) |
| 1137 | return; |
| 1138 | |
| 1139 | global $wp_xmlrpc_server; |