There's two methods I use, depending on the situations I need.

What it sounds like you want is this:

$sql = "SELECT id FROM test ORDER BY id DESC LIMIT 1";


Often when I need to know the next avaliable ID prior to making an insert,
I'll do this--

$sql ="SHOW TABLE STATUS LIKE 'test'";
$array = $this->sql->getRow($sql);
echo $array['Auto_increment'];

Either way will get you a number you can work with, the first gets you the
last inserted number and the second way gets you the number of what the next
entry will be.

--Nick Pappas



-----Original Message-----
From: Patrik Fomin [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, July 01, 2003 9:04 PM
To: [EMAIL PROTECTED]
Subject: [PHP-DB] Hi, simple question


Hi,

im adding a post to the database, is there any way to retrive back the ID
for the post that i just created?

the id is auto_increment and primary key.

like
$sql = "insert into test (namn, www) values('test', 'test.com')";
mysql_query($sql);

$row = mysql_get_post("id");
?

the only way i could think of was to create a tempfield in the database and
each time you post you give the temp field a unique value, like:

$sql = "insert into test (namn, www, unique) values('test',
'test.com','25323324')"; mysql_query($sql);

$sql = "select id from test where unique = '25323324'";
$res = mysql_query($sql);


regards
patrick



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