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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 $value; }
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
1234 Fatal error: Uncaught TypeError: count(): Argument #1 ($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.
Output for 8.0.0 - 8.0.9
1234 Fatal error: Uncaught TypeError: count(): Argument #1 ($var) 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.
Output for 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
1234 Warning: count(): Parameter must be an array or an object that implements Countable in /in/Z3e1U on line 9
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
1234
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Generators cannot return values using "return" in /in/Z3e1U on line 9
Process exited with code 255.
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