3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); class Foo { private array $data = []; public function __set($name, $value) { $this->data[$name] = $value; } public function __isset($name) { return isset($this->data[$name]); } public function __unset($name) { unset($this->data[$name]); } } $foo = new Foo(); $foo->__set(1, 'one'); $foo->__set(2, 'two'); var_dump( $foo->__isset(1), // true $foo->__isset(2) // true ); $foo->__unset(1); var_dump( $foo->__isset(1) // false );
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
bool(true) bool(true) bool(false)
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Parse error: syntax error, unexpected 'array' (T_ARRAY), expecting function (T_FUNCTION) or const (T_CONST) in /in/0VmYQ on line 5
Process exited with code 255.
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