Online PHP editor | refs for UgmXc

<?php $regex = '(?<!<br>)(?<!\s)\s*($(?:(?:(?!<br>|\(|$).)*(?:$(?:(?!<br>|\(|$).)*\))?)*?\))\s*(\{)'; $test_string = 'AAAAAAAAAAAAAA{AA'; echo "1:".mb_ereg_replace($regex,'WORKED',$test_string)."\n"; echo "2:".preg_replace('/'.$regex.'/u','WORKED',$test_string)."\n"; echo "3:".preg_replace('/'.$regex.'/','WORKED',$test_string)."\n";