downloads | documentation | faq | getting help | mailing lists | licenses | wiki | reporting bugs | php.net sites | links | conferences | my php.net

search for in the

com_event_sink> <com_addref
Last updated: Fri, 06 Nov 2009

view this page in

com_create_guid

(PHP 5)

com_create_guidGenerate a globally unique identifier (GUID)

Description

string com_create_guid ( void )

Generates a Globally Unique Identifier (GUID).

A GUID is generated in the same way as DCE UUID's, except that the Microsoft convention is to enclose a GUID in curly braces.

Return Values

Returns the GUID as a string.

See Also

  • uuid_create() in the PECL uuid extension



add a note add a note User Contributed Notes
com_create_guid
Kristof_Polleunis at yahoo dot com
28-Apr-2005 05:16
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();
?>

com_event_sink> <com_addref
Last updated: Fri, 06 Nov 2009
 
 
show source | credits | stats | sitemap | contact | advertising | mirror sites