<?php
class App_Collection implements ArrayAccess, IteratorAggregate, Countable
{
public $data = array('x'=>'a');
public function count()
{
return count($this->data);
}
public function offsetExists($offset)
{
return (isset($this->data[$offset]));
}
public function offsetGet($offset)
{
if ($this->offsetExists($offset))
{
return $this->data[$offset];
}
return false;
}
public function offsetSet($offset, $value)
{
if ($offset)
{
$this->data[$offset] = $value;
}
else
{
$this->data[] = $value;
}
}
public function offsetUnset($offset)
{
unset($this->data[$offset]);
}
public function getIterator()
{
return new ArrayIterator($this->data);
}
}
$array = new App_Collection();
var_dump(isset($array['x']));
var_dump(array_key_exists('x', $array));
Deprecated: Return type of App_Collection::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/qrF4X on line 11
Deprecated: Return type of App_Collection::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/qrF4X on line 16
Deprecated: Return type of App_Collection::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/qrF4X on line 25
Deprecated: Return type of App_Collection::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/qrF4X on line 37
Deprecated: Return type of App_Collection::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/qrF4X on line 42
Deprecated: Return type of App_Collection::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/qrF4X on line 6
bool(true)
Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, App_Collection given in /in/qrF4X:50
Stack trace:
#0 {main}
thrown in /in/qrF4X on line 50
Process exited with code 255.
Output for 8.0.0 - 8.0.30
bool(true)
Fatal error: Uncaught TypeError: array_key_exists(): Argument #2 ($array) must be of type array, App_Collection given in /in/qrF4X:50
Stack trace:
#0 {main}
thrown in /in/qrF4X on line 50
Process exited with code 255.
Output for 7.4.0 - 7.4.33
bool(true)
Deprecated: array_key_exists(): Using array_key_exists() on objects is deprecated. Use isset() or property_exists() instead in /in/qrF4X on line 50
bool(false)