PHP Custom Authentication Approach -

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i in process of building custom backend user control panel in php.

i seeking advice on how best manage authentication of users. have written own custom registration , login system (i not intend use server based authentication). plans set session variable once user authenticated , use allow/disallow access.

is correct approach or insecure, want protect against users might attempt by-pass authentication, , valid users want able restrict data, example user 4 shouldn't see users 1,2 or 3's personal data.

how easy mask/trick/cheat php session variable?

a session variable data stored on server. every sessions contains unique identifier connects cookie session ( stored data ). when don't have identifier cant request session.

the safety issue here cookie can hijacked. better security need check on ip address.

for example:

if($login === true)   $session['userdata'] = array("ip" => "11.11.11.11", "userid" => "5");

should have following check:

if($_session['userdata']['ip'] == $_server['remote_host']) {   /* checks , stuff. */ } else {   die("session not belong you!"); }

when ip check impossible hijack session cookie ( or need in same network , stuff )


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