How can I pull a specific part out of a serialized data?

[tasha whitman]

I'm new to PHP and I've been trying to wrap my brain around this to no avail. Basically in this program I have groups and the group id is apparently stored as serialized data like this:

a:1:{i:0;s:2:"4";}

The only number i need is "4".

But I have no idea how to pull that out. IS this easier than it feels?

Thank you!

[code green]

If always wrapped in double quotes and they are the only ones

$str = 'a:1:{i:0;s:2:"4";}'
$id = substr($str,strpos($str,'"')+1,1);

Not tested this, but the idea is strpos gives position of first double quote.
Add 1 to this and substr returns 1 character of string from here.

[tasha whitman]

Thank you. That doesn't seem to work for me though. I should probably give more info. The SQL database I am pulling out of is labeled

_group
with

a:1:{i:0;s:1:"4";}

in it

On the php end where i am trying to get that number into looks like this

$userPerms = array(
     "role" => "", //role id

When I stick the number "4" in there it works! but for only one group. and that number can change with what group that person wants. To pull out the data for the table, the code already does this:

"website" => $this->userInfo['website']

Which spits out exactly what's in there, so i've tried different variations of it using what you suggested. but to no avail.

I've tried this

$roleout = $this->userInfo['_group']
			{
			$role = unserialize($roleout);
			$role2 = substr($role,strpos($role,'"')+1,1);
			}
			;
			$userIsAdmin = false;
			$userPerms = array(
				"role" => $role2, //role id

but I think i'm just shooting blanks and hoping one is real. lol

[johny10151981]

Try Using explode function.

follow the link to understand detail

[tasha whitman]

Okay I figured it out. It was a mixture of discovery and newbie error.

$roleout = $this->userInfo['_group'];
			$role2 = unserialize($roleout);
			
			
			$userIsAdmin = false;
			$userPerms = array(
				"role" => $role3 = ($role2[0]), //role id

and that was it. I was putting the second part in {} which was messing it all up. And then I needed to learn more about array's and how to pull out the correct position. Newbie right! Went through 2 php books, lots of research, lynda.com and unserialize.net to figure it all out.

thank you for all the help!