1--TEST-- 2The variable $php_errormsg shouldn't be optimized as it may be unpredictably modified 3--INI-- 4track_errors=1 5--FILE-- 6<?php 7 8function test() { 9 $php_errormsg = 1; 10 echo $undef; 11 var_dump($php_errormsg + 1); 12} 13test(); 14 15?> 16--EXPECTF-- 17Deprecated: Directive 'track_errors' is deprecated in Unknown on line 0 18 19Notice: Undefined variable: undef in %s on line %d 20 21Warning: A non-numeric value encountered in %s on line %d 22int(1) 23