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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 |
|---|---|
| 372 | if ( $block ) // a plugin has already blocked... we'll let that decision stand |
| 373 | return $block; |
| 374 | if ( ($time_newcomment - $time_lastcomment) < 15 ) |
| 375 | return true; |
| 376 | return false; |
| 377 | } |
| 378 | |
| 379 | |
| 380 | function wp_new_comment( $commentdata ) { |
| 381 | $commentdata = apply_filters('preprocess_comment', $commentdata); |
| 382 | |
| 383 | $commentdata['comment_post_ID'] = (int) $commentdata['comment_post_ID']; |
| 384 | $commentdata['user_ID'] = (int) $commentdata['user_ID']; |
| 385 | |
| 386 | $commentdata['comment_author_IP'] = preg_replace( '/[^0-9., ]/', '',$_SERVER['REMOTE_ADDR'] ); |
| 387 | $commentdata['comment_agent'] = $_SERVER['HTTP_USER_AGENT']; |
| 388 | |
| 389 | $commentdata['comment_date'] = current_time('mysql'); |
| 390 | $commentdata['comment_date_gmt'] = current_time('mysql', 1); |