3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(strlen(pack("H*", "7061636b6167652e786d6c000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000030303030363434003030303137353000303030313735300030303030303231373036370031323030303335343330300030313234353720003000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000757374617220200064657269636b000000000000000000000000000000000000000000000000000064657269636b0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000")));
Output for git.master, git.master_jit, rfc.property-hooks
int(512)

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page


preferences:
43.75 ms | 401 KiB | 8 Q