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<?php $arr = ['7C02B75EF38FFF9D','64B57885164061C7','0B35B61C83722BB1','9C5FB6290E6A5B37','2080810D49816FDD','B14CA0B0ABEDFC28','DEF1EC429BB6B004','1EFA534C0EEBA8CC','6EDDE267DE100C54','F701A3FA576049C2','DF4A56E89EFF0EFB','17F7731831C6A930','E598A16559BE92DC','64B57885164061C7','0B35B61C83722BB1','9C5FB6290E6A5B37','2080810D49816FDD','B14CA0B0ABEDFC28','DEF1EC429BB6B004','1EFA534C0EEBA8CC','6EDDE267DE100C54','F701A3FA576049C2','DF4A56E89EFF0EFB','17F7731831C6A930','E598A16559BE92DC','','977B78816B72CA8B','1ECCD301F2977B94','26BA969041022904','3966DA400D339479','542A76B3CE171525']; echo count($arr) . PHP_EOL; $arr = array_unique($arr); echo $arr . PHP_EOL; $arr = array_filter($arr); echo count($arr) . PHP_EOL;
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