3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php for ($i = 0; $i < 10000; $i++) { printf("x"); }
based on ppF5i
Output for 5.4.0 - 5.6.30, hhvm-3.10.1 - 3.11.1, hhvm-3.13.2 - 3.17.3, 7.0.0 - 7.2.0
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Output for hhvm-3.12.14

Process exited with code 137.