PHP Arrays Selection from URL - php

Question

I have coded a internal messenger system for the company I work for and I am trying to make things easier for myself by making a admin panel for this so it can control the usernames, passwords and groups.
Basically I am trying to select a user from the array using a url ?user=username which will then return the user information and allow it to be changed. The problem I am having is to get the url to select the username in the array.
The array is basic:
$users = array(
'0' => array(
'username' => 'test',
'password' => 'test123',
'group' => 'office',
),

Answer 1

Like this?:
<?php
// get username from URL (GET METHOD)
$username=$_GET["username"];
// $users has all the info
foreach ($users as $u) {
// find the target user
if ($u["username"] == $username) {
// do something with $u
var_dump($u);
}
}
?>

Answer 2

Did you tried to do this:
$user_name = $users[0]["username"];

Answer 3

Try this (not tested)
$u = null;
foreach($user as $user) {
if(isset($_GET['user']) && $user['username'] == $_GET['user']) {
$u = $user;
}
}
$u variable should contains yours user record.

Answer 4

Since it's an array i assume you have multiple indexes. I guess a simple 'find' function might work.
function findUser($searchData, $users, $searchField) {
$retObj = array();
foreach ($users as $user) {
if (isset($user[$searchField]) && $user[$searchField] == $searchData) {
$retObj['username'] = $user['username'];
$retObj['password'] = $user['password'];
$retObj['group'] = $user['group'];
break;
}
}
return $retObj;
}
EDIT: Added searchField so u can do same for password and group. Searchdata is the value u are searching