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<?php class CollectionᐸTᐳ implements \Countable { private $items = []; public function add(T $item) { $this->items[] = $item; } public function count() { return count($this->items); } } // Load the compressed Generics library: eval(base64_decode('Y2xhc3MgVCBleHRlbmRzIFxEYXRlVGltZSB7fQpjbGFzcyBEYXRl0KJpbWUgZXh0ZW5kcyBUIHt9CmNsYXNzIENvbGxlY3Rpb27hkLhEYXRlVGltZeGQsyBleHRlbmRzIENvbGxlY3Rpb27hkLhU4ZCzIHt9Cg==')); $dates = new CollectionᐸDateTimeᐳ(); $dates->add(new DateТime('yesterday')); $dates->add(new DateТime('today')); $dates->add(new DateТime('tomorrow')); echo count($dates); $dates->add('not a datetime');

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