Authentication Scripts for a User Management Application

The func.inc script

This script is essentially an include file that contains helper functions, such as the one that uses regular expressions to check if a given email address is correctly formatted. The file contains at least four functions, which are listed below:

<?php

function isadmin($id){

//run query to check if this user is admin

$sql = "SELECT level FROM users WHERE uid='".$id."'";

$res = mysql_query($sql);

if($res){

$row= mysql_fetch_assoc($res);

if($row['level'] == 'admin'){

return TRUE;

}else{

return FALSE;

}

}

}

function isAuthed($uname){

if(isset($uname)){

return TRUE;

}else{

return FALSE;

}

}

function genpass()

{

//This function generates a 7 letter password

$chars = "1234567890abcdefGHIJKLMNOPQRSTUVWxyz
ABCDEFghijklmnopqrstuvwXYZ1234567890";

$thepass = '';

for($i=0;$i<7;$i++)

{

$thepass .= $chars{rand() % 39};

}

return $thepass;

}

function checkEmail($email){

if(eregi('^[[:alnum:]][a-z0-9_.-]*@[a-z0-9.-]+.[a-z]{2,8}$',$email)){

return TRUE;

}else{

return FALSE;

}

}

?>