wppaste
WordPress

WP_Meta_Query::sanitize_query( array $queries ): array

Since
4.1.0
Source
wp-includes/class-wp-meta-query.php:192
Ensures the 'meta_query' argument passed to the class constructor is well-formed.

Description

Eliminates empty items and ensures that a 'relation' is set.

Compatibility

WordPress
since 4.1.0
PHP
7.4–8.6-dev
  • 6.7.7
  • 6.8.8
  • 6.9.7
  • 7.0.4
  • 7.1.0

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Parameters

$queriesarray
Array of query clauses.

Return value

array
Sanitized array of query clauses.

Performance profile

How much work a call to WP_Meta_Query::sanitize_query() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class
Trivial

Touches nothing outside its own arguments.

Scaling
Scales with input

The body loops, so the work grows with what you pass in.

Instructions
5–22

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 61.

Plugin surface
None

Nothing here hands control to plugin code.

Called by
2

2 places in core call this, so the cost is paid more often than your own code shows.

What one call costs · 2 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Meta_Query::sanitize_query() can have, taken from its control-flow graph on PHP 8.5.

WhenInstructionsCalls it makes
always5–17none
is_array($queries) && !empty($clean_queries) && isset($relation)20–22strtoupper()

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 61 instructions, 5–22 executed per call, 13 branches. The work does not change between versions.

An instruction is not a fixed amount of time, so a matching count is not necessarily the same speed; what it rules out is a difference in the work itself.

Uses · 2

Used by · 2

Source code

View on Trac View on GitHub 

	public function sanitize_query( $queries ) {		$clean_queries = array(); 		if ( ! is_array( $queries ) ) {			return $clean_queries;		} 		foreach ( $queries as $key => $query ) {			if ( 'relation' === $key ) {				$relation = $query; 			} elseif ( ! is_array( $query ) ) {				continue; 				// First-order clause.			} elseif ( $this->is_first_order_clause( $query ) ) {				if ( isset( $query['value'] ) && array() === $query['value'] ) {					unset( $query['value'] );				} 				$clean_queries[ $key ] = $query; 				// Otherwise, it's a nested query, so we recurse.			} else {				$cleaned_query = $this->sanitize_query( $query ); 				if ( ! empty( $cleaned_query ) ) {					$clean_queries[ $key ] = $cleaned_query;				}			}		} 		if ( empty( $clean_queries ) ) {			return $clean_queries;		} 		// Sanitize the 'relation' key provided in the query.		if ( isset( $relation ) && 'OR' === strtoupper( $relation ) ) {			$clean_queries['relation'] = 'OR';			$this->has_or_relation     = true; 			/*			* If there is only a single clause, call the relation 'OR'.			* This value will not actually be used to join clauses, but it			* simplifies the logic around combining key-only queries.			*/		} elseif ( 1 === count( $clean_queries ) ) {			$clean_queries['relation'] = 'OR'; 			// Default to AND.		} else {			$clean_queries['relation'] = 'AND';		} 		return $clean_queries;	}

Changelog

Introduced in 4.1.0. Unchanged from 6.7.7 through 7.1.0.

  1. 6.7.7
  2. 6.8.8
  3. 6.9.7
  4. 7.0.4
  5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data
Generated from the wordpress-develop 6.8.8 tag, from src/wp-includes/class-wp-meta-query.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
Something wrong on this page? Report it and it gets fixed in the next regeneration.