File size: 1,331 Bytes
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Bug #71731: Null coalescing operator and ArrayAccess
--FILE--
<?php
class AA implements ArrayAccess {
private $data = [];
public function offsetExists($name): bool {
echo "offsetExists($name)\n";
return array_key_exists($name, $this->data);
}
public function &offsetGet($name): mixed {
echo "offsetGet($name)\n";
if (!array_key_exists($name, $this->data)) {
throw new Exception('Unknown offset');
}
return $this->data[$name];
}
public function offsetSet($name, $value): void {
echo "offsetSet($name)\n";
$this->data[$name] = $value;
}
public function offsetUnset($name): void {
echo "offsetUnset($name)\n";
unset($this->data[$name]);
}
}
$aa = new AA;
var_dump(isset($aa[0][1][2]));
var_dump(isset($aa[0]->foo));
var_dump($aa[0] ?? 42);
var_dump($aa[0][1][2] ?? 42);
$aa[0] = new AA;
$aa[0][1] = new AA;
var_dump(isset($aa[0][1][2]));
var_dump($aa[0][1][2] ?? 42);
?>
--EXPECT--
offsetExists(0)
bool(false)
offsetExists(0)
bool(false)
offsetExists(0)
int(42)
offsetExists(0)
int(42)
offsetSet(0)
offsetGet(0)
offsetSet(1)
offsetExists(0)
offsetGet(0)
offsetExists(1)
offsetGet(1)
offsetExists(2)
bool(false)
offsetExists(0)
offsetGet(0)
offsetExists(1)
offsetGet(1)
offsetExists(2)
int(42)
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