get_meta_sql

Filters the meta query's generated SQL.

Description

apply_filters( 'get_meta_sql', (array) $array ); 

Parameters (1)

0. $array (array) => array( $sql, $this->queries, $type, $primary_table, $primary_id_column, $context )
The array.

Usage

To run the hook, copy the example below.
  1. $array = apply_filters( 'get_meta_sql', $array ); 
  2.  
  3. if ( !empty( $array ) ) { 
  4.  
  5. // everything has led up to this point... 
  6.  
  7.  
The following example is for adding a hook callback.
  1. // define the get_meta_sql callback 
  2. function filter_get_meta_sql( $array ) { 
  3. // make filter magic happen here... 
  4. return $array
  5. }; 
  6.  
  7. // add the filter 
  8. add_filter( 'get_meta_sql', 'filter_get_meta_sql', 10, 1 ); 
To remove a hook callback, use the example below.
  1. // remove the filter 
  2. remove_filter( 'get_meta_sql', 'filter_get_meta_sql', 10, 1 ); 

Defined (1)

The filter is defined in the following location(s).

/wp-includes/class-wp-meta-query.php  
  1. return apply_filters_ref_array( 'get_meta_sql', array( $sql, $this->queries, $type, $primary_table, $primary_id_column, $context ) );