wpdb::set_sql_mode()
Changes the current SQL mode, and ensures its WordPress compatibility.
If no modes are passed, it will ensure the current MySQL server modes are compatible.
Method of the class: wpdb{}
Hooks from the method
Return
null
. Nothing (null).
Usage
global $wpdb; $wpdb->set_sql_mode( $modes );
- $modes(array)
- A list of SQL modes to set.
Default: empty array
Changelog
Since 3.9.0 | Introduced. |
wpdb::set_sql_mode() wpdb::set sql mode code WP 6.4.3
public function set_sql_mode( $modes = array() ) { if ( empty( $modes ) ) { $res = mysqli_query( $this->dbh, 'SELECT @@SESSION.sql_mode' ); if ( empty( $res ) ) { return; } $modes_array = mysqli_fetch_array( $res ); if ( empty( $modes_array[0] ) ) { return; } $modes_str = $modes_array[0]; if ( empty( $modes_str ) ) { return; } $modes = explode( ',', $modes_str ); } $modes = array_change_key_case( $modes, CASE_UPPER ); /** * Filters the list of incompatible SQL modes to exclude. * * @since 3.9.0 * * @param array $incompatible_modes An array of incompatible modes. */ $incompatible_modes = (array) apply_filters( 'incompatible_sql_modes', $this->incompatible_modes ); foreach ( $modes as $i => $mode ) { if ( in_array( $mode, $incompatible_modes, true ) ) { unset( $modes[ $i ] ); } } $modes_str = implode( ',', $modes ); mysqli_query( $this->dbh, "SET SESSION sql_mode='$modes_str'" ); }