public static function random($size = 32)
    {
        $bytes = openssl_random_pseudo_bytes($size, $strong);

        if ($bytes !== false && $strong !== false) {
            $string = '';
            while (($len = strlen($string)) < $size) {
                $length = $size - $len;

                $string .= substr(str_replace(['/', '+', '='], '', base64_encode($bytes)), 0, $length);
            }

            return $string;
        }
    }
public static function random($size = 32)
    {
        $bytes = openssl_random_pseudo_bytes($size, $strong);

        if ($bytes !== false && $strong !== false) {
            $string = '';
            while (($len = strlen($string)) < $size) {
                $length = $size - $len;

                $string .= substr(str_replace(['/', '+', '='], '', base64_encode($bytes)), 0, $length);
            }

            return $string;
        }
    }
public static function random ( $ size = 32 ) { $ bytes = openssl_random_pseudo_bytes ( $ size , $ strong ) ; if ( $ bytes !== false && $ strong !== false ) { $ string = '' ; while ( ( $ len = strlen ( $ string ) ) < $ size ) { $ length = $ size - $ len ; $ string .= substr ( str_replace ( [ '/' , '+' , '=' ] , '' , base64_encode ( $ bytes ) ) , 0 , $ length ) ; } return $ string ; } }
To generate random string

@param int $size

@return string
To generate random string