3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public int $a; public function __construct(int $a = 1) { $this->a = $a; } } class B extends A { public string $b; public function __construct(string $b = 'hello') { $this->b = $b; } } $b = new B(); $b->a=1; var_dump($b->a, $b->b);
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
int(1) string(5) "hello"
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Parse error: syntax error, unexpected 'int' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in /in/1530v on line 4
Process exited with code 255.
preferences:
142.46 ms | 407 KiB | 5 Q