<?php
class ArrayObjectChild extends ArrayObject {
public function offsetExists($offset) {
var_dump('Called: '.__METHOD__);
return parent::offsetExists($offset);
}
public function offsetGet($offset) {
var_dump('Called: '.__METHOD__);
return parent::offsetGet($offset);
}
}
class ArrayAcessImplementation implements ArrayAccess {
private $_array = array();
public function __construct(array $array) {
$this->_array = $array;
}
public function offsetExists($offset) {
var_dump('Called: '.__METHOD__);
return array_key_exists($offset);
}
public function offsetGet($offset) {
var_dump('Called: '.__METHOD__);
return $this->_array($offset);
}
public function offsetSet($offset, $value) {}
public function offsetUnset($offset) {}
}
$array = array('foo' => '');
// ArrayObject: empty string is set, but empty
$object = new ArrayObject($array);
var_dump(isset($object['foo']), empty($object['foo']));
// ArrayObject extended: empty string is set, but not empty
$object = new ArrayObjectChild($array);
var_dump(isset($object['foo']), empty($object['foo']));
// ArrayAccess implemented: empty string is set, but empty
$object = new ArrayAcessImplementation($array);
var_dump(isset($object['foo']), empty($object['foo']));
Deprecated: Return type of ArrayObjectChild::offsetExists($offset) should either be compatible with ArrayObject::offsetExists(mixed $key): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HGPBG on line 5
Deprecated: Return type of ArrayObjectChild::offsetGet($offset) should either be compatible with ArrayObject::offsetGet(mixed $key): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HGPBG on line 10
Deprecated: Return type of ArrayAcessImplementation::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HGPBG on line 25
Deprecated: Return type of ArrayAcessImplementation::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HGPBG on line 30
Deprecated: Return type of ArrayAcessImplementation::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HGPBG on line 35
Deprecated: Return type of ArrayAcessImplementation::offsetUnset($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/HGPBG on line 36
bool(true)
bool(true)
string(38) "Called: ArrayObjectChild::offsetExists"
string(38) "Called: ArrayObjectChild::offsetExists"
string(35) "Called: ArrayObjectChild::offsetGet"
bool(true)
bool(true)
string(46) "Called: ArrayAcessImplementation::offsetExists"
Fatal error: Uncaught ArgumentCountError: array_key_exists() expects exactly 2 arguments, 1 given in /in/HGPBG:27
Stack trace:
#0 /in/HGPBG(27): array_key_exists('foo')
#1 /in/HGPBG(51): ArrayAcessImplementation->offsetExists('foo')
#2 {main}
thrown in /in/HGPBG on line 27
Process exited with code 255.
Output for 8.0.0 - 8.0.30
bool(true)
bool(true)
string(38) "Called: ArrayObjectChild::offsetExists"
string(38) "Called: ArrayObjectChild::offsetExists"
string(35) "Called: ArrayObjectChild::offsetGet"
bool(true)
bool(true)
string(46) "Called: ArrayAcessImplementation::offsetExists"
Fatal error: Uncaught ArgumentCountError: array_key_exists() expects exactly 2 arguments, 1 given in /in/HGPBG:27
Stack trace:
#0 /in/HGPBG(27): array_key_exists('foo')
#1 /in/HGPBG(51): ArrayAcessImplementation->offsetExists('foo')
#2 {main}
thrown in /in/HGPBG on line 27
Process exited with code 255.
bool(true)
bool(true)
string(38) "Called: ArrayObjectChild::offsetExists"
string(38) "Called: ArrayObjectChild::offsetExists"
bool(true)
bool(false)
string(46) "Called: ArrayAcessImplementation::offsetExists"
Warning: array_key_exists() expects exactly 2 parameters, 1 given in /in/HGPBG on line 27
string(46) "Called: ArrayAcessImplementation::offsetExists"
Warning: array_key_exists() expects exactly 2 parameters, 1 given in /in/HGPBG on line 27
bool(false)
bool(true)
Output for 5.2.2 - 5.2.17
bool(true)
bool(true)
string(38) "Called: ArrayObjectChild::offsetExists"
string(38) "Called: ArrayObjectChild::offsetExists"
bool(true)
bool(false)
string(46) "Called: ArrayAcessImplementation::offsetExists"
Warning: Wrong parameter count for array_key_exists() in /in/HGPBG on line 27
string(46) "Called: ArrayAcessImplementation::offsetExists"
Warning: Wrong parameter count for array_key_exists() in /in/HGPBG on line 27
bool(false)
bool(true)
Output for 5.2.1
bool(true)
bool(true)
string(38) "Called: ArrayObjectChild::offsetExists"
string(38) "Called: ArrayObjectChild::offsetExists"
bool(false)
bool(true)
string(46) "Called: ArrayAcessImplementation::offsetExists"
Warning: Wrong parameter count for array_key_exists() in /in/HGPBG on line 27
string(46) "Called: ArrayAcessImplementation::offsetExists"
Warning: Wrong parameter count for array_key_exists() in /in/HGPBG on line 27
bool(false)
bool(true)
Output for 5.1.0 - 5.1.6, 5.2.0
bool(true)
bool(false)
string(38) "Called: ArrayObjectChild::offsetExists"
string(38) "Called: ArrayObjectChild::offsetExists"
bool(true)
bool(false)
string(46) "Called: ArrayAcessImplementation::offsetExists"
Warning: Wrong parameter count for array_key_exists() in /in/HGPBG on line 27
string(46) "Called: ArrayAcessImplementation::offsetExists"
Warning: Wrong parameter count for array_key_exists() in /in/HGPBG on line 27
bool(false)
bool(true)
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/HGPBG on line 21
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/HGPBG on line 5
Process exited with code 255.
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/HGPBG on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/HGPBG on line 5
Process exited with code 255.