<?php
class foo implements ArrayAccess {
public function offsetSet($offset, $value) {
var_dump(__METHOD__);
}
public function offsetExists($var) {
var_dump(__METHOD__);
if ($var == "foobar") {
return true;
}
return false;
}
public function offsetUnset($var) {
var_dump(__METHOD__);
}
public function offsetGet($var) {
var_dump(__METHOD__);
return "value";
}
}
$foo['bar'] = 1;
var_dump(array_key_exists($foo['bar']));
Deprecated: Return type of foo::offsetExists($var) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/ia5nF on line 8
Deprecated: Return type of foo::offsetGet($var) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/ia5nF on line 18
Deprecated: Return type of foo::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/ia5nF on line 5
Deprecated: Return type of foo::offsetUnset($var) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/ia5nF on line 15
Fatal error: Uncaught ArgumentCountError: array_key_exists() expects exactly 2 arguments, 1 given in /in/ia5nF:26
Stack trace:
#0 /in/ia5nF(26): array_key_exists(1)
#1 {main}
thrown in /in/ia5nF on line 26
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Fatal error: Uncaught ArgumentCountError: array_key_exists() expects exactly 2 arguments, 1 given in /in/ia5nF:26
Stack trace:
#0 /in/ia5nF(26): array_key_exists(1)
#1 {main}
thrown in /in/ia5nF on line 26
Process exited with code 255.