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run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = '<b>AAAAA</b>'; var_dump( preg_replace('^<(*)>(*)<(*)$', '*', $string) );
Output for 4.3.11 - 7.1.0
Warning: preg_replace(): No ending delimiter '^' found in /in/ACuUd on line 4 NULL
Output for 4.3.0 - 4.3.10
Warning: No ending delimiter '^' found in /in/ACuUd on line 4 NULL