$count_pass = c("edit1")->text;

if(c("checkbox1")->checked)
{
$end_small = 'abcdefghijklmnopqrstuvwxyz';
}

if(c("checkbox2")->checked)
{
$symbols = '"^$#@?*-=_+';
}

if(c("checkbox3")->checked)
{
$numbers = '1234567890';
}

$all = $end_small.$symbols.$numbers;

$count = iconv_strlen($end_small) + iconv_strlen($symbols) + iconv_strlen($numbers);

for($x = 0; $x<$count_pass;$x++)
{
$pass .= $all[rand(0, $count)];
}
c("MemoText")->text = $pass;