shorten preg_match(or) code - regex

Question

I was trying to make a program to match the string which must contains number of 0-9 using regex.
This was correct but it somehow seems long. Do anyone has alternatives for this code?
if($str = (preg_match('/[1]/', $str) && preg_match('/[2]/', $str)
&& preg_match('/[3]/', $str) && preg_match('/[4]/', $str)
&& preg_match('/[5]/', $str) && preg_match('/[6]/', $str)
&& preg_match('/[7]/', $str) && preg_match('/[8]/', $str)
&& preg_match('/[9]/', $str) && preg_match('/[0]/', $str))) {
//do something
}

Answer 1

Simply use a character range: [0-9].
if (preg_match('/[0-9]/', $str)) {
echo 'It does.';
} else {
echo 'It doesn\'t.';
}
If you were ever in a situation where you wouldn't want "6" you could even change it to [012345789] if you really want to.
As Floris mentions, your code is pretty confusing - if you want all the characters to be displayed individually at least once, you can simply use strpos with a loop:
<?php
$match = true;
for ($i = 0; $i < 9; $i++) {
if (strpos($string, (string)$i) === false) {
$match = false;
break; //No need to continue the loop - we already got our answer
}
}
if ($match) {
echo 'Yes!';
} else {
echo 'No!';
}
?>
Alternatively, I apparently already gave you a function to do this?

Answer 2

Looks like you have all the conditions ANDed together. In that following lookahead based regex should work for you:
preg_match('/(?=[^0]*0)(?=[^1]*1)(?=[^2]*2)(?=[^3]*3)(?=[^4]*4)(?=[^5]*5)(?=[^6]*6)(?=[^7]*7)(?=[^8]*8)(?=[^9]*9)./', $str)

Answer 3

If you want to make sure that your string contains all the digits 0-9, you should probably strip anything that is not a digit, then take unique characters only, and make sure the string length is 10. This is more compact than your expression but not necessarily faster. The php function count_chars does much of this work (using mode = 3):
$str = "12345abcde789d9999969";
preg_match_all('/\d+/', $str, $matches);
$distinct = strlen(count_chars(join($matches[0]),3));
if($distinct==10)
{
echo "all ten digits are present<br>";
}
else
{
echo "not all digits are present<br>";
}
echo "there are " . $distinct . " distinct digits<br>";
Output of the above:
not all digits are present
there are 9 distinct digits