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run code in 200+ php & hhvm versions
Bugs & Features
<?php echo htmlspecialchars('javascript://http://linkedin.com%0Aalert(&quot;document.cookie&quot;)', ENT_QUOTES);
Output for 4.3.2 - 7.2.0
javascript://http://linkedin.com%0Aalert(&amp;quot;document.cookie&amp;quot;)
Output for 4.3.0 - 4.3.1

Process exited with code 139.