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run code in 200+ php & hhvm versions
Bugs & Features
<?php $_POST['keywords']="sample products!@, products#$#, sample"; $keywords = preg_replace("/[^\]", ',',($_POST['keywords'])); echo $keywords;
Output for 4.3.11 - 7.1.7
Warning: preg_replace(): No ending delimiter '/' found in /in/GaQUu on line 3
Output for 4.3.0 - 4.3.10
Warning: No ending delimiter '/' found in /in/GaQUu on line 3