3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php (number_format(1e80, 0, '', ' ')); (number_format(1e300, 0, '', ' ')); (number_format(1e320, 0, '', ' ')); echo strlen($a) . "\n"; echo 4; number_format(1e1000, 0, '', ' '); echo "Done\n"; ?>
Output for 5.1.2 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: a in /in/7Z5F8 on line 5 0 4Done
Output for 4.3.3 - 4.4.1, 5.0.0 - 5.1.1

Process exited with code 139.
Output for 4.3.0 - 4.3.2, 4.4.2 - 4.4.9
Notice: Undefined variable: a in /in/7Z5F8 on line 5 0 4Done