<?php class ResourceType { public function __destruct() { echo "Resource is released.\n"; } } function get_callback() { $some_resource = new ResourceType(); $fn = function() { // // why is my lock released? //var_dump($some_resource); // "Free that resource" $some_resource = null; }; return $fn; } $fn = get_callback(); echo "Before callback\n"; $fn(); echo "After callback\n";
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