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run code in 300+ PHP versions simultaneously
<?php class HelloWorld { public function sayHello($mixed): void { if (ctype_digit((string) $mixed)) { var_dump($mixed); } } } $h = new HelloWorld(); $h->sayHello(1); $h->sayHello(0); $h->sayHello(-1); $h->sayHello(true); $h->sayHello(false); $h->sayHello([]); $h->sayHello([1]); $h->sayHello([false]); $h->sayHello(1.1); $h->sayHello('0123'); $h->sayHello('123'); $h->sayHello('a123'); $h->sayHello('123a'); $h->sayHello('abc'); $h->sayHello('1<');
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
int(1) int(0) bool(true) Warning: Array to string conversion in /in/YA4ri on line 7 Warning: Array to string conversion in /in/YA4ri on line 7 Warning: Array to string conversion in /in/YA4ri on line 7 string(4) "0123" string(3) "123"
preferences:
119.44 ms | 402 KiB | 91 Q