<?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($var) {
var_dump(__METHOD__);
return "value";
}
}
var_dump($foo['bar']);
var_dump(array_key_exists($foo['bar']));
Deprecated: Return type of foo::offsetExists($var) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/sAklG on line 8
Deprecated: Return type of foo::offsetGet($var) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/sAklG on line 18
Deprecated: Return type of foo::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/sAklG on line 5
Deprecated: Return type of foo::offsetUnset($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/sAklG on line 15
Warning: Undefined variable $foo in /in/sAklG on line 25
Warning: Trying to access array offset on null in /in/sAklG on line 25
NULL
Warning: Undefined variable $foo in /in/sAklG on line 26
Warning: Trying to access array offset on null in /in/sAklG on line 26
Fatal error: Uncaught ArgumentCountError: array_key_exists() expects exactly 2 arguments, 1 given in /in/sAklG:26
Stack trace:
#0 /in/sAklG(26): array_key_exists(NULL)
#1 {main}
thrown in /in/sAklG on line 26
Process exited with code 255.
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Deprecated: Return type of foo::offsetExists($var) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/sAklG on line 8
Deprecated: Return type of foo::offsetGet($var) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/sAklG on line 18
Deprecated: Return type of foo::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/sAklG on line 5
Deprecated: Return type of foo::offsetUnset($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/sAklG on line 15
Warning: Undefined variable $foo in /in/sAklG on line 25
Warning: Trying to access array offset on value of type null in /in/sAklG on line 25
NULL
Warning: Undefined variable $foo in /in/sAklG on line 26
Warning: Trying to access array offset on value of type null in /in/sAklG on line 26
Fatal error: Uncaught ArgumentCountError: array_key_exists() expects exactly 2 arguments, 1 given in /in/sAklG:26
Stack trace:
#0 /in/sAklG(26): array_key_exists(NULL)
#1 {main}
thrown in /in/sAklG on line 26
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Warning: Undefined variable $foo in /in/sAklG on line 25
Warning: Trying to access array offset on value of type null in /in/sAklG on line 25
NULL
Warning: Undefined variable $foo in /in/sAklG on line 26
Warning: Trying to access array offset on value of type null in /in/sAklG on line 26
Fatal error: Uncaught ArgumentCountError: array_key_exists() expects exactly 2 arguments, 1 given in /in/sAklG:26
Stack trace:
#0 /in/sAklG(26): array_key_exists(NULL)
#1 {main}
thrown in /in/sAklG on line 26
Process exited with code 255.
Output for 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined variable: foo in /in/sAklG on line 25
Notice: Trying to access array offset on value of type null in /in/sAklG on line 25
NULL
Notice: Undefined variable: foo in /in/sAklG on line 26
Notice: Trying to access array offset on value of type null in /in/sAklG on line 26
Warning: array_key_exists() expects exactly 2 parameters, 1 given in /in/sAklG on line 26
NULL
Output for 7.3.32 - 7.3.33, 7.4.26
NULL
Warning: array_key_exists() expects exactly 2 parameters, 1 given in /in/sAklG on line 26
NULL
Notice: Undefined variable: foo in /in/sAklG on line 25
NULL
Notice: Undefined variable: foo in /in/sAklG on line 26
Warning: array_key_exists() expects exactly 2 parameters, 1 given in /in/sAklG on line 26
NULL
Notice: Undefined variable: foo in /in/sAklG on line 25
NULL
Notice: Undefined variable: foo in /in/sAklG on line 26
Warning: Wrong parameter count for array_key_exists() in /in/sAklG on line 26
NULL
Output for 5.0.0 - 5.0.3
Notice: Undefined variable: foo in /in/sAklG on line 25
NULL
Notice: Undefined variable: foo in /in/sAklG on line 26
Warning: Wrong parameter count for array_key_exists() in /in/sAklG on line 26
NULL
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/sAklG on line 3
Process exited with code 255.