index.php

<?php
 
function randomPassword($length,$count, $characters) {
 
// $length - the length of the generated password
// $count - number of passwords to be generated
// $characters - types of characters to be used in the password
 
// define variables used within the function    
    $symbols = array();
    $passwords = array();
    $used_symbols = '';
    $pass = '';
 
// an array of different character types    
    $symbols["lower_case"] = 'abcdefghijklmnopqrstuvwxyz';
    $symbols["upper_case"] = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
    $symbols["numbers"] = '1234567890';
    $symbols["special_symbols"] = '!?~@#-_+<>[]{}';
 
    $characters = split(",",$characters); // get characters types to be used for the passsword
    foreach ($characters as $key=>$value) {
        $used_symbols .= $symbols[$value]; // build a string with all characters
    }
    $symbols_length = strlen($used_symbols) - 1; //strlen starts from 0 so to get number of characters deduct 1
     
    for ($p = 0; $p < $count; $p++) {
        $pass = '';
        for ($i = 0; $i < $length; $i++) {
            $n = rand(0, $symbols_length); // get a random character from the string with all characters
            $pass .= $used_symbols[$n]; // add the character to the password string
        }
        $passwords[] = $pass;
    }
     
    return $passwords; // return the generated password
}
 
$DeveloperPasswords = ["Name1-Password1","Name2-Password2"];


if(!isset($_COOKIE['DeveloperPassword'])) {
    include("./includes/401.php");
}else{
    for ($i=0; $i < sizeof($DeveloperPasswords) -1; $i++) { 
        if ($DeveloperPasswords[$i] == $_COOKIE['DeveloperPassword']) {
            include("./includes/home.php");
        }else{
            include("./includes/401.php");
        }
    }
}

?>