note 116518 deleted from function.array-search by crell

Note Submitter: nan at designpromote dot co dot uk ---- $array = ['a', 'b', 'c']; $key = array_search('a', $array); //$key = 0 if ($key) { //even a element is found in array, but if (0) means false //... } //the correct way if (false !== $key) { //.... } It's what the document stated "may also return a non-Boolean value which evaluates to FALSE."