create random SALT for MD5

[nagasea]

can someone let me know how to create a Random (3 characters) SALT for MD5 purpose. (the random salt can contain number, letter, symbol)

thanks before

[planetsim]

Ok firstly are you going to be trying to get this result checked again if so I would have some way of tracking this random string

srand(microtime() * 1000000000000);
$rnd = array_merge(range('a','z'), range('A','Z'), range(0,9));
$rnds = array_rand($rnd, 8);

$string = "";

for($i=0;$i<=2;$i++){
  $string .= $rnd[$rnds[$i]];
}

[sidney]

all that array creating for just 3 chars

 $seed='';
for($i=0;$i<3;$i++)
	 $seed.=chr(rand(33,122));
echo $seed;