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<?php $a = [1,2,3,4]; function x($input) { foreach ($input as $value) { yield $value; } return count($value); } foreach (x($a) as $value) { echo $value; }
Output for git.master, git.master_jit, rfc.property-hooks
1234 Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, int given in /in/Z3e1U:9 Stack trace: #0 /in/Z3e1U(12): x(Array) #1 {main} thrown in /in/Z3e1U on line 9
Process exited with code 255.

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