wpdb::delete( string $table, array $where, array|string $where_format = null )

Deletes a row in the table.

Description Description

Examples: wpdb::delete( ‘table’, array( ‘ID’ => 1 ) ) wpdb::delete( ‘table’, array( ‘ID’ => 1 ), array( ‘%d’ ) )

See also See also

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Parameters Parameters


(string) (Required) Table name.


(array) (Required) A named array of WHERE clauses (in column => value pairs). Multiple clauses will be joined with ANDs. Both $where columns and $where values should be "raw". Sending a null value will create an IS NULL comparison

  • the corresponding format will be ignored in this case.


(array|string) (Optional) An array of formats to be mapped to each of the values in $where. If string, that format will be used for all of the items in $where. A format is one of '%d', '%f', '%s' (integer, float, string). If omitted, all values in $data will be treated as strings unless otherwise specified in wpdb::$field_types.

Default value: null

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Return Return

(int|false) The number of rows updated, or false on error.

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Source Source

File: wp-includes/wp-db.php

	public function delete( $table, $where, $where_format = null ) {
		if ( ! is_array( $where ) ) {
			return false;

		$where = $this->process_fields( $table, $where, $where_format );
		if ( false === $where ) {
			return false;

		$conditions = array();
		$values     = array();
		foreach ( $where as $field => $value ) {
			if ( is_null( $value['value'] ) ) {
				$conditions[] = "`$field` IS NULL";

			$conditions[] = "`$field` = " . $value['format'];
			$values[]     = $value['value'];

		$conditions = implode( ' AND ', $conditions );

		$sql = "DELETE FROM `$table` WHERE $conditions";

		$this->check_current_query = false;
		return $this->query( $this->prepare( $sql, $values ) );

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Changelog Changelog

Version Description
3.4.0 Introduced.

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