PHP generates order number, GUID method

PHP generates order number, GUID method
Generate order numberfunction build_order_no() {    <br>     return date('Ymd').substr(implode(NULL, array_map('ord', str_split(substr(uniqid(), 7, 13), 1))), 0, 8);<br> }Generate GUIDfunction guid() {    <br>     if (function_exists('com_create_guid')) {        <br>         return com_create_guid();    <br>     } else {     <br>         mt_srand((double)microtime()*10000);<br>         $charid = strtoupper(md5(uniqid(rand(), true))); <br>         $hyphen = chr(45);        <br>         $uuid   = chr(123)            <br>                  .substr($charid, 0, 8).$hyphen               <br>                  .substr($charid, 8, 4).$hyphen            <br>                  .substr($charid,12, 4).$hyphen            <br>                  .substr($charid,16, 4).$hyphen            <br>                  .substr($charid,20,12)            <br>                  .chr(125);<br>         return $uuid;    <br>     }<br> }To update technology sharing, please go to PHP engineer subscription account.

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