3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = array("a","popen"); echo fread( $x[1] ("uname -a", "r"), 31337); // where is your filter now ?>
Output for 5.5.24 - 7.2.0
Output for 5.3.0 - 5.4.45
Warning: popen(uname -a,r): Resource temporarily unavailable in /in/G3d0Y on line 1 Warning: fread() expects parameter 1 to be resource, boolean given in /in/G3d0Y on line 1
Output for 4.3.2 - 5.2.17
Warning: popen(uname -a,r): Resource temporarily unavailable in /in/G3d0Y on line 1 Warning: fread(): supplied argument is not a valid stream resource in /in/G3d0Y on line 1
Output for 4.3.0 - 4.3.1
Warning: popen(uname -a,r) [http://www.php.net/function.popen]: Resource temporarily unavailable in /in/G3d0Y on line 1 Warning: fread(): supplied argument is not a valid stream resource in /in/G3d0Y on line 1