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<?php function square($i): int { return $i*$i; } $i = 2; while (true) { echo $i . PHP_EOL; $i = square($i); }
Output for git.master, git.master_jit, rfc.property-hooks
2 4 16 256 65536 4294967296 Fatal error: Uncaught TypeError: square(): Return value must be of type int, float returned in /in/foqum:4 Stack trace: #0 /in/foqum(10): square(4294967296) #1 {main} thrown in /in/foqum on line 4
Process exited with code 255.

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