3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = ['$and'=> ['task.discriminator' => 'filippo', 'status.deleted' => 'asdf']]; $iterator = new RecursiveIteratorIterator(new RecursiveArrayIterator($arr)); $keys = array(); foreach ($iterator as $key => $value) { // Build long key name based on parent keys for ($i = $iterator->getDepth() - 1; $i >= 0; $i--) { $key = $iterator->getSubIterator($i)->key() . '_' . $key; } $keys[] = $key; } var_export($keys);
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => '$and_task.discriminator', 1 => '$and_status.deleted', )

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:
30.57 ms | 401 KiB | 8 Q