3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo strip_tags("<<a>script>alert('XSS');<</a>/script>");
Output for 5.6.28, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
alert('XSS');
preferences:
95.27 ms | 403 KiB | 159 Q