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run code in 150+ php & hhvm versions
Bugs & Features
<?php echo '<pre>'; $a = ' \\\n'; echo $a.'<br>'; if (preg_match('%\\{2}%i', $a, $regs)) { var_dump($regs); } else { echo 'Failed.'; }
Output for 4.3.0 - 7.1.0
<pre> \\n<br>Failed.