3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php header("Refresh: 0;url=http://google.it\r\nCookie: user=5");
Output for 5.3.11 - 5.3.29, 5.4.1 - 7.1.0
Warning: Header may not contain more than a single header, new line detected in /in/Zt9Wr on line 3
Output for 5.2.3 - 5.3.10, 5.4.0
Warning: Header may not contain more than a single header, new line detected. in /in/Zt9Wr on line 3
Output for 4.4.2 - 4.4.9, 5.1.2 - 5.2.2
<br /> <b>Warning</b>: Header may not contain more than a single header, new line detected. in <b>/in/Zt9Wr</b> on line <b>3</b><br />
Output for 4.3.0 - 4.4.1, 5.0.0 - 5.1.1