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run code in 200+ php & hhvm versions
Bugs & Features
<?php $profileSubscriptions = ['one' => false, 'two' => true]; $lookup = ['one' => 'subscription', 'two' => 'marketing']; $subscriptions = array_filter($profileSubscriptions); $lists = array_keys(array_filter(array_intersect_key($lookup, $subscriptions))); var_dump($lists); $diff = array_diff_key($subscriptions, $lists); echo 'Subscriptions do not exist for ' . implode(', ', $diff);
based on j7gCE
Output for 5.4.0 - 7.2.0
array(1) { [0]=> string(3) "two" } Subscriptions do not exist for 1
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/O7Mnv on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/O7Mnv on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/O7Mnv on line 3
Process exited with code 255.