3v4l.org

run code in 300+ PHP versions simultaneously
<?php function myCallback($buffer, $flags) { if ($flags & PHP_OUTPUT_HANDLER_START) { header('Server: LastMinuteHeaderServer'); } } ob_start('myCallback'); echo "Hello World!"; ob_end_flush();
Output for git.master, git.master_jit, rfc.property-hooks

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:
60.06 ms | 401 KiB | 8 Q