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run code in 300+ PHP versions simultaneously
<?php function foo() { static $array = array(); $i = 0; while ($i < 100000) { $array[] = $i; $i++; } $key = 9999; $exists = array_key_exists($key, $array); if ($exists === true) echo 'exists'; else echo 'does not exist'; } foo();
Output for git.master, git.master_jit, rfc.property-hooks
exists

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