1--TEST-- 2Bug #64578 (debug_backtrace in set_error_handler corrupts zend heap: segfault) 3--FILE-- 4<?php 5 6set_error_handler(function($no, $err) { var_dump($err); }); 7 8function x($s) { $s['2a'] = 1; }; 9$y = '1'; 10x($y); 11print_r($y); 12?> 13--EXPECT-- 14string(26) "Illegal string offset "2a"" 151 16