preg_match error

[DataSpy]

This is my first time using preg_match and I'm a little confuesed   I'm trying to match an array against zero but I keep getting the error: Warning: preg_match() [function.preg-match]: Delimiter must not be alphanumeric or backslash in

 

$IP = implode('.',$Start);
$Command = shell_exec("ping -c 1 -w 1 $IP");
$data = explode(',',$Command);
$data = $data[1];

if(preg_match("0", '$data'))
{
echo "$IP online <br />";
}

 

any help would be greatly apprenticed, thanks in advance!!!

[requinix]

It doesn't sound like you should be using regular expressions.

 

What do you mean "match an array against zero"?

[abareplace]

1) Is ping output separated with commas?

 

2) If you need to compare the second element of the array with "0", just write if ($data[1] == '0'). No regular expression is needed.

[AyKay47]

You are getting the error because you aren't using delimiters at all, read preg_match

And yeah, you don't need regex for this.

[DataSpy]

Thanks for all of the replies!!!  I used if () instead, sorry about being a dumbass .  I was looking at an example of something but I changed a lot of code and in the end didn't need to use preg_match.

 

Thanks!!!!!!!!!