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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 |
|---|---|
| 1537 | * Log debugging info to the error log. |
| 1538 | * |
| 1539 | * Enabled when WP_DEBUG_LOG is enabled (and WP_DEBUG, since according to |
| 1540 | * core, "WP_DEBUG_DISPLAY and WP_DEBUG_LOG perform no function unless |
| 1541 | * WP_DEBUG is true), but can be disabled via the akismet_debug_log filter. |
| 1542 | * |
| 1543 | * @param mixed $akismet_debug The data to log. |
| 1544 | */ |
| 1545 | public static function log( $akismet_debug ) { |
| 1546 | if ( apply_filters( 'akismet_debug_log', defined( 'WP_DEBUG' ) && WP_DEBUG && defined( 'WP_DEBUG_LOG' ) && WP_DEBUG_LOG && defined( 'AKISMET_DEBUG' ) && AKISMET_DEBUG ) ) { |
| 1547 | error_log( print_r( compact( 'akismet_debug' ), true ) ); |
| 1548 | } |
| 1549 | } |
| 1550 | |
| 1551 | public static function pre_check_pingback( $method ) { |
| 1552 | if ( $method !== 'pingback.ping' ) |
| 1553 | return; |
| 1554 | |
| 1555 | // A lot of this code is tightly coupled with the IXR class because the xmlrpc_call action doesn't pass along any information besides the method name. |