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<?php function getRunningTotal(array $array) { $generator = function(array $array) { $total = 0; foreach ($array as $key => $value) { $total += $value; yield $key => $total; } }; return iterator_to_array($generator); } $a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; var_dump(getRunningTotal($a));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: iterator_to_array(): Argument #1 ($iterator) must be of type Traversable|array, Closure given in /in/GT60Z:10 Stack trace: #0 /in/GT60Z(10): iterator_to_array(Object(Closure)) #1 /in/GT60Z(15): getRunningTotal(Array) #2 {main} thrown in /in/GT60Z on line 10
Process exited with code 255.

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