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<?php class HelloWorld { public function sayHello($mixed): void { if (ctype_digit((string) $mixed)) { var_dump($mixed); } if (ctype_digit((int) $mixed)) { var_dump($mixed); } } } $h = new HelloWorld(); $h->sayHello(4);
Output for git.master, git.master_jit, rfc.property-hooks
int(4) Deprecated: ctype_digit(): Argument of type int will be interpreted as string in the future in /in/LPe72 on line 10

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