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
3185           if ( !$q['suppress_filters'] ) {
3186                /**
3187                 * Filter the WHERE clause of the query.
3188                 *
3189                 * @since 1.5.0
3190                 *
3191                 * @param string   $where The WHERE clause of the query.
3192                 * @param WP_Query &$this The WP_Query instance (passed by reference).
3193                 */
3194                $where = apply_filters_ref_array( 'posts_where', array( $where, &$this ) );
3195
3196                /**
3197                 * Filter the JOIN clause of the query.
3198                 *
3199                 * @since 1.5.0
3200                 *
3201                 * @param string   $where The JOIN clause of the query.
3202                 * @param WP_Query &$this The WP_Query instance (passed by reference).
3203                 */