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How to use posts_clauses_request filter in WordPress

Sandeep Kumar Mishra
Sandeep Kumar Mishra
July 11, 2022
5 minutes read

posts_clauses_request filter

Filters all query clauses at once, for convenience.

apply_filters_ref_array( 'posts_clauses_request', string[] $clauses, WP_Query $query )

Description

This is filter hook , its filter all query clauses at once, for convenience.
For use by caching plugins and its covers the WHERE, GROUP BY, JOIN, ORDER BY, DISTINCT, fields (SELECT), and LIMIT clauses.
Its consists of two parameters, one is $clauses, second is $query.

Parameters

  • $clauses : (string[]) Associative array of the clauses for the query.
    ‘where’
    (string) The WHERE clause of the query.
    ‘groupby’
    (string) The GROUP BY clause of the query.
    ‘join’
    (string) The JOIN clause of the query.
    ‘orderby’
    (string) The ORDER BY clause of the query.
    ‘distinct’
    (string) The DISTINCT clause of the query.
    ‘fields’
    (string) The SELECT clause of the query.
    ‘limits’
    (string) The LIMIT clause of the query.
  • $query : (WP_Query) The WP_Query instance (passed by reference).

Live Example

To run the hook, copy the example below.

$posts_clauses_request = apply_filters( 'posts_clauses_request', $clauses, $query );                        
if ( !empty( $posts_clauses_request ) ) {                      
  // everything has led up to this point...                         
}   
// define the posts_clauses_request callback 
function filter_posts_clauses_request( $clauses, $query ) { 
    // make filter magic happen here... 
    return $clauses; 
};       
// add the filter 
add_filter( 'posts_clauses_request', 'filter_posts_clauses_request', 10, 1 ); 

To remove a hook callback, use the example below.

// remove the filter 
remove_filter( 'posts_clauses_request', 'filter_posts_clauses_request', 10, 1 ); 
Sandeep Kumar Mishra

Sandeep Kumar Mishra writes about WordPress and Artificial Intelligence, offering tips and guides to help you master your website and stay updated with the latest tech trends.

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