wpdb::delete( string $table, array $where, array|string $where_format = null )
Delete a row in the table
Contents
Description Description
wpdb::delete( ‘table’, array( ‘ID’ => 1 ) ) wpdb::delete( ‘table’, array( ‘ID’ => 1 ), array( ‘%d’ ) )
See also See also
- wpdb::prepare()
- wpdb::$field_types
- wp_set_wpdb_vars()
Parameters Parameters
- $table
-
(string) (Required) Table name
- $where
-
(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.
- $where_format
-
(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 $where will be treated as strings unless otherwise specified in wpdb::$field_types.
Default value: null
Return Return
(int|false) The number of rows updated, or false on error.
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 = $values = array();
foreach ( $where as $field => $value ) {
if ( is_null( $value['value'] ) ) {
$conditions[] = "`$field` IS NULL";
continue;
}
$conditions[] = "`$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. |