func_random_key

func_random_key.php

<?php
    function keyGenerate($leight) {
        if (is_int($leight)) {
            $array = array("1", "2", "3", "4", "5", "6", "7", "8", "9","0",
                           "A","B","D","E","F","G","H","I","J","K","L","M",
                           "N","O","P","Q","R","S","T","U","V","W","X","Y","Z");
            $count = count($array)-1;
            $result = "";
            for ($i = 1; $i <= $leight; $i++) {
                $random = mt_rand(0,$count);
                $case = mt_rand(0,1);
                if ($case == 0 ) {
                    $symbol = mb_strtolower($array[$random]);
                } else {
                $symbol = $array[$random];
                }
            $result = $result.$symbol;    
            }
        } else {
            $result = "Введите длину генерируемого пароля!";
        }
        return $result;
    }