wpdb::escape( string|array $data ): string|array

Source

public function escape( $data ) {
	if ( func_num_args() === 1 && function_exists( '_deprecated_function' ) ) {
		_deprecated_function( __METHOD__, '3.6.0', 'wpdb::prepare() or esc_sql()' );
	}
	if ( is_array( $data ) ) {
		foreach ( $data as $k => $v ) {
			if ( is_array( $v ) ) {
				$data[ $k ] = $this->escape( $v, 'recursive' );
			} else {
				$data[ $k ] = $this->_weak_escape( $v, 'internal' );
			}
		}
	} else {
		$data = $this->_weak_escape( $data, 'internal' );
	}

	return $data;
}

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