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run code in 300+ PHP versions simultaneously
<?php class A { public function __construct() { $this->foobar("A"); } private function foobar(string $a) { print $a; } } class B extends A { public function __construct() { $this->foobar(); } public function foobar() { print "B"; } } new A; new B;
Output for 7.0.10 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 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
AB
Output for 7.0.0 - 7.0.9
Warning: Declaration of B::foobar() should be compatible with A::foobar(string $a) in /in/neN3L on line 21 AB
preferences:
332.74 ms | 407 KiB | 5 Q