Generate random string with PHP

If you want to generate random code with PHP you can use this function:

<?php
public function genRandmStr($lgt = 8){
       
        $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_@#!';
        $charactersLength = strlen($characters);
        $randomString = '';
        for ($i = 0; $i < $lgt; $i++) {
            $randomString .= $characters[rand(0, $charactersLength - 1)];
        }
        return $randomString;
    }
}

// you can see the result here
echo genRandmStr();
?>