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 = ''; 19var_dump($str['foo'] = 'a'); 20var_dump($str); 21 22$str = ''; 23try { 24 var_dump($str[] = 'a'); 25} catch (Error $e) { 26 echo "Error: {$e->getMessage()}\n"; 27} 28var_dump($str); 29 30$str = ''; 31try { 32 var_dump($str[0] += 1); 33} catch (Error $e) { 34 echo "Error: {$e->getMessage()}\n"; 35} 36var_dump($str); 37 38$str = ''; 39try { 40 var_dump($str[0][0] = 'a'); 41} catch (Error $e) { 42 echo "Error: {$e->getMessage()}\n"; 43} 44var_dump($str); 45 46?> 47--EXPECTF-- 48string(1) "a" 49string(1) "a" 50string(1) "a" 51string(6) " a" 52 53Warning: Illegal string offset: -1 in %s on line %d 54NULL 55string(0) "" 56 57Warning: Illegal string offset 'foo' in %s on line %d 58string(1) "a" 59string(1) "a" 60Error: [] operator not supported for strings 61string(0) "" 62Error: Cannot use assign-op operators with string offsets 63string(0) "" 64Error: Cannot use string offset as an array 65string(0) "" 66
