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<?php $serialized_array = serialize(array(1234=>"foobar")); echo "Serialized Array: $serialized_array" . PHP_EOL; $array = unserialize($serialized_array); print_r($array); if (array_key_exists(1234, $array)) { echo "Key Exists!"; } else { echo "Key Not Found!"; }
based on 8hU2B

Shows result from various feature-branches currently under review from the php developers. Contact me to have additional branches featured.

Output for Arrow functions
Serialized Array: a:1:{i:1234;s:6:"foobar";} Array ( [1234] => foobar ) Key Exists!

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