Source View: posts_where

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: 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.

Source View

Line Code
2510           if ( ! $q['suppress_filters'] ) {
2511                /**
2512                 * Filters the WHERE clause of the query.
2513                 *
2514                 * @since 1.5.0
2515                 *
2516                 * @param string   $where The WHERE clause of the query.
2517                 * @param WP_Query $this The WP_Query instance (passed by reference).
2518                 */
2519                $where = apply_filters_ref_array( 'posts_where', array( $where, &$this ) );
2520
2521                /**
2522                 * Filters the JOIN clause of the query.
2523                 *
2524                 * @since 1.5.0
2525                 *
2526                 * @param string   $join  The JOIN clause of the query.
2527                 * @param WP_Query $this The WP_Query instance (passed by reference).
2528                 */