<?php function build_order_no() { return date('Ymd').substr(implode(NULL, array_map('ord', str_split(substr(uniqid(), 7, 13), 1))), 0, 8); } $i = 10; while($i) { $no = build_order_no(); $uniqid = uniqid(); file_put_contents('test.log', "$no\n$uniqid\n", FILE_APPEND); --$i; } echo PHP_EOL;
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