|", $chr ) !== false || preg_match( "/[\\x00-\\x1f\\x7f]/", $chr ) ) { $this->assertFalse( (bool)preg_match( "/[$titlechars]/", $chr ), "chr($num) = $chr is not a valid titlechar" ); } else { $this->assertTrue( (bool)preg_match( "/[$titlechars]/", $chr ), "chr($num) = $chr is a valid titlechar" ); } } } }