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PHP : Function Reference : COM and .Net (Windows) : com_create_guid

com_create_guid

Generate a globally unique identifier (GUID) (PHP 5)
string com_create_guid ( )


Code Examples / Notes » com_create_guid

kristof_polleunis

A guid function that works in all php versions:
<?php
function guid(){
   if (function_exists('com_create_guid')){
       return com_create_guid();
   }else{
       mt_srand((double)microtime()*10000);//optional for php 4.2.0 and up.
       $charid = strtoupper(md5(uniqid(rand(), true)));
       $hyphen = chr(45);// "-"
       $uuid = chr(123)// "{"
               .substr($charid, 0, 8).$hyphen
               .substr($charid, 8, 4).$hyphen
               .substr($charid,12, 4).$hyphen
               .substr($charid,16, 4).$hyphen
               .substr($charid,20,12)
               .chr(125);// "}"
       return $uuid;
   }
}
echo guid();
?>


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