1--TEST-- 2Bug #71572: String offset assignment from an empty string inserts null byte 3--FILE-- 4<?php 5 6$str = "abc"; 7try { 8 var_dump($str[0] = ""); 9} catch (\Error $e) { 10 echo $e->getMessage() . \PHP_EOL; 11} 12try { 13 var_dump($str[1] = ""); 14} catch (\Error $e) { 15 echo $e->getMessage() . \PHP_EOL; 16} 17try { 18 var_dump($str[3] = ""); 19} catch (\Error $e) { 20 echo $e->getMessage() . \PHP_EOL; 21} 22try { 23 var_dump($str[10] = ""); 24} catch (\Error $e) { 25 echo $e->getMessage() . \PHP_EOL; 26} 27var_dump($str); 28?> 29--EXPECT-- 30Cannot assign an empty string to a string offset 31Cannot assign an empty string to a string offset 32Cannot assign an empty string to a string offset 33Cannot assign an empty string to a string offset 34string(3) "abc" 35