csu3_am335x/EVSE/GPL/php-8.1.12/tests/lang/foreachLoopIterator.002.phpt

--TEST--
foreach with iterator and &$value reference
--FILE--
<?php

class MyIterator implements Iterator {
    public function valid(): bool { return true; }
    public function next(): void {}
    public function rewind(): void {}
    public function current(): mixed { return null; }
    public function key(): mixed {return ""; }
}

$f = new MyIterator;
echo "-----( Try to iterate with &\$value: )-----\n";
foreach ($f as $k=>&$v) {
    echo "$k => $v\n";
}

?>
--EXPECTF--
-----( Try to iterate with &$value: )-----

Fatal error: Uncaught Error: An iterator cannot be used with foreach by reference in %s:13
Stack trace:
#0 {main}
  thrown in %s on line 13