[SOLVED] Quick String Question

[spires]

Hi.

 

I'm trying to work out how I check to see if my number is a negative.

 

Example.

$str = '-450';

 

So basically, I want to check if string $str contains a -

 

Any ideas would be great, thanks.

[Michdd]

Couldn't you just do:

 

if($str < 0)
{
    //whatever
}

 

[Garethp]

http://www.maxi-pedia.com/string+contains+substring+PHP

[spires]

Perfect, Thanks

[Michdd]

If you insist in searching the string for a '-' you can do:

 

$check = strpos($str, '-');
if($check === false)
{
     echo "It is a positive";
}
else
{
     echo "It is negative";
}