1--TEST-- 2Bug #53432: Assignment via string index access on an empty string converts to array 3--FILE-- 4<?php 5 6$str = ''; 7var_dump($str[0] = 'a'); 8var_dump($str); 9 10$str = ''; 11var_dump($str[5] = 'a'); 12var_dump($str); 13 14$str = ''; 15var_dump($str[-1] = 'a'); 16var_dump($str); 17 18$str = ''; 19try { 20 var_dump($str['foo'] = 'a'); 21} catch (\TypeError $e) { 22 echo $e->getMessage() . \PHP_EOL; 23} 24var_dump($str); 25 26$str = ''; 27try { 28 var_dump($str[] = 'a'); 29} catch (Error $e) { 30 echo "Error: {$e->getMessage()}\n"; 31} 32var_dump($str); 33 34$str = ''; 35try { 36 var_dump($str[0] += 1); 37} catch (Error $e) { 38 echo "Error: {$e->getMessage()}\n"; 39} 40var_dump($str); 41 42$str = ''; 43try { 44 var_dump($str[0][0] = 'a'); 45} catch (Error $e) { 46 echo "Error: {$e->getMessage()}\n"; 47} 48var_dump($str); 49 50?> 51--EXPECTF-- 52string(1) "a" 53string(1) "a" 54string(1) "a" 55string(6) " a" 56 57Warning: Illegal string offset -1 in %s on line %d 58NULL 59string(0) "" 60Cannot access offset of type string on string 61string(0) "" 62Error: [] operator not supported for strings 63string(0) "" 64Error: Cannot use assign-op operators with string offsets 65string(0) "" 66Error: Cannot use string offset as an array 67string(0) "" 68
