3v4l.org

run code in 300+ PHP versions simultaneously
<?php class DefaultMap implements ArrayAccess { private $array; private $default; public function __construct($default = null) { $this->array = []; $this->default = $default; } public function &offsetGet($key) { if (!isset($this->array[$key])) { $this->array[$key] = $this->default; } return $this->array[$key]; } public function offsetSet($key, $value) { $this->array[$key] = $value; } public function offsetExists($key) { return isset($this->array[$key]); } public function offsetUnset($key) { unset($this->array[$key]); } public function toArray() { return $this->array; } } $map = new DefaultMap(0); $map["foo"]++; var_dump($map->toArray());
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Deprecated: Return type of DefaultMap::offsetExists($key) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/sU57S on line 24 Deprecated: Return type of & DefaultMap::offsetGet($key) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/sU57S on line 12 Deprecated: Return type of DefaultMap::offsetSet($key, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/sU57S on line 20 Deprecated: Return type of DefaultMap::offsetUnset($key) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/sU57S on line 28 array(1) { ["foo"]=> int(1) }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Deprecated: Return type of DefaultMap::offsetExists($key) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/sU57S on line 24 Deprecated: Return type of & DefaultMap::offsetGet($key) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/sU57S on line 12 Deprecated: Return type of DefaultMap::offsetSet($key, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/sU57S on line 20 Deprecated: Return type of DefaultMap::offsetUnset($key) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/sU57S on line 28 array(1) { ["foo"]=> int(1) }
Output for 7.1.25 - 7.1.32, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
array(1) { ["foo"]=> int(1) }
preferences:
147.18 ms | 402 KiB | 176 Q