1--TEST-- 2Various null return conditions of dim/obj assignments 3--FILE-- 4<?php 5 6function test() { 7 $array = [PHP_INT_MAX => 42]; 8 $true = true; 9 10 var_dump($array[] = 123); 11 var_dump($array[[]] = 123); 12 var_dump($array[new stdClass] = 123); 13 var_dump($true[123] = 456); 14 15 var_dump($array[] += 123); 16 var_dump($array[[]] += 123); 17 var_dump($array[new stdClass] += 123); 18 var_dump($true[123] += 456); 19 20 var_dump($true->foo = 123); 21 var_dump($true->foo += 123); 22} 23 24test(); 25 26?> 27--EXPECTF-- 28Warning: Cannot add element to the array as the next element is already occupied in %s on line %d 29NULL 30 31Warning: Illegal offset type in %s on line %d 32NULL 33 34Warning: Illegal offset type in %s on line %d 35NULL 36 37Warning: Cannot use a scalar value as an array in %s on line %d 38NULL 39 40Warning: Cannot add element to the array as the next element is already occupied in %s on line %d 41NULL 42 43Warning: Illegal offset type in %s on line %d 44NULL 45 46Warning: Illegal offset type in %s on line %d 47NULL 48 49Warning: Cannot use a scalar value as an array in %s on line %d 50NULL 51 52Warning: Attempt to assign property 'foo' of non-object in %s on line %d 53NULL 54 55Warning: Attempt to assign property 'foo' of non-object in %s on line %d 56NULL 57