generate all binary combinations of x length

[stealthcow]

i was wondering how you generate all binary combinations of a string x long, eg

$x = 3

so it would generate

000
001
010
011
100
101
110
111

any ideas?

[mahers]

Like:

$x=3;

for($i=0; $i<(pow($x,2)-1); $i++) {
    $tmp = decbin($i);
    while(strlen($tmp) < $x)
        $tmp = "0".$tmp;
    echo $tmp."<br>";
}

?

[stealthcow]

i tried setting $x to 16 but it dies when it gets to 0000000011111110

[feldon23]

Don't you think displaying 65,536 numbers is a bit obscene?

Can you tell us what the greater purpose/accomplishment of this script is going to be?

[stealthcow]

it has a use but im not going to disclose it at the moment!

i figured out how to do it tho, thanks