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|generating unique number |
unique number, php, no same value in database
| 6:21 am on Feb 15, 2008 (gmt 0)|
does anyone know on how to generate a unique number like for example an employee id or student id. that id is unique right, and it doesnt have the same value in the database. please teach me how...tnx
| 6:26 am on Feb 15, 2008 (gmt 0)|
$c = uniqid (rand (),true);
| 7:47 am on Feb 15, 2008 (gmt 0)|
tnx, but the output is too long. i want to limit the number in 6 digits.
how to do that? please help..
| 10:28 am on Feb 15, 2008 (gmt 0)|
$randNum = uniqid(rand(100000,999999),true);
| 10:30 am on Feb 15, 2008 (gmt 0)|
$randNum = rand(100000,999999);
| 2:10 pm on Feb 15, 2008 (gmt 0)|
If you set an auto incrementing field in your database, you can just do an insert (with that value set to null) then use mysql_insert_id() [php.net] to find out what number was assigned by MySQL.
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