The Extract() Function Something I just found out

[ghostrider 0]

The extract() function is used in PHP to take an array and split it up into variables. MySQL queries can be parsed this way. Below is an example.

$query = mysql_query("select username, password from users where uid=1");$result = mysql_fetch_array($query, mysql_assoc);extract($result);print "Your username is : $username";

The extract() function works for ANY array, including $_POST, and $_GET. Makes processing form data a LOT easier .

[shadowx 0]

I might be able to make use of this, but first, i dont fully understand. Say i had an array like this:

$array>>username = shadowx
>>password = mypass
>>ip = 111.111.111.111

by that i mean that $array['username'] is "shadowx"

Now if i were to use EXTRACT would it give me three variables called $username, $password and $ip or do i have to say what i want it to call the variables somehow?

[jlhaslip 4]

Looks like it would work on any associative array.

http://ca.php.net/manual/en/function.extract.php

[ghostrider 0]

You have it right shadowx. It calls the variable names the names of the elements in the array. I would assume it wouldn't work on numerical arrays, but I'm not sure.

[rvalkass 5]

It is very useful, but use it with care. People can easily overwrite variables in a string of $_GET variables passed by the browser. You could assign one thing, then they just reassign it at the end. People can also overwrite variables not assigned in the $_GET but that you have been using anyway. Therefore, if you are going to use it, call it before you create any variables (so they have nothing to overwrite) and use the EXTR_SKIP flag to skip any variables that have already been assigned, which stops them tagging them on the end of the address.

[shadowx 0]

You have it right shadowx. It calls the variable names the names of the elements in the array. I would assume it wouldn't work on numerical arrays, but I'm not sure.

humm this could be useful to me in the case! i always find it so tedious to sit and write 5 lines of assigning variables from a POST array. Thanks for the info!

[Blessed 0]

wow thanx for the tip