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run code in 500+ PHP versions simultaneously
<?php class A { public $a; public function __construct( $a = 1 ) { $this->a = $a; } } class B extends A { public function __construct( public string $b = 'hello' ) {} } $b = new B(); var_dump($b->a, $b->b);
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.8
Parse error: syntax error, unexpected 'public' (T_PUBLIC), expecting variable (T_VARIABLE) in /in/HM5s0 on line 15
Process exited with code 255.
Output for 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
NULL string(5) "hello"

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