--TEST--
XORing strings
--FILE--
<?php

$s = "123";
$s1 = "test";
$s2 = "45345some";
$s3 = str_repeat("f", 1);
$s4 = str_repeat("f", 2);

$s ^= 22;
var_dump($s);

try {
    $s1 ^= 11;
    var_dump($s1);
} catch (\TypeError $e) {
    echo $e->getMessage() . \PHP_EOL;
}

$s2 ^= 33;
var_dump($s2);

$s3 ^= " ";
var_dump($s3);

$s4 ^= "  ";
var_dump($s4);

echo "Done\n";
?>
--EXPECTF--
int(109)
Unsupported operand types: string ^ int

Warning: A non-numeric value encountered in %s on line %d
int(45312)
string(1) "F"
string(2) "FF"
Done