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--TEST--
Test nullsafe in function argument
--FILE--
<?php
class Foo {
public $bar;
}
function set(&$ref, $value) {
$ref = $value;
}
function test($foo) {
try {
set($foo?->bar, 'bar');
} catch (Error $e) {
echo $e->getMessage() . "\n";
}
try {
(strrev('tes'))($foo?->bar, 'bar2');
} catch (Error $e) {
echo $e->getMessage() . "\n";
}
}
test(null);
test(new Foo());
?>
--EXPECT--
set(): Argument #1 ($ref) cannot be passed by reference
set(): Argument #1 ($ref) cannot be passed by reference
set(): Argument #1 ($ref) cannot be passed by reference
set(): Argument #1 ($ref) cannot be passed by reference
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