Check for string inside a string...

Hey,

I need some help here. I need to check whether a string is present inside another string, and if it is then do whatever...

So for example, I have a string of:
"ACTIVE: string 0 & string 1 DEACTIVE:"
I need to check that string and see if "string 0 & string 1" is inside it, because it could be different all the time, could just be "string 0" one time, "string 1" another time, or "string 0 & string 1" some other time. This may sound confusing, but hopefully someone get's the idea. If not, i can try and provide more information. Thanks.

 

Probably the easiest way to do it is with the strpos function. Example 1 at that URL is pretty much what you are looking to do.

 

if (strpos($haystack,$needle)) { echo "Needle Found"; }

strpos()

 

$filestring="your text string";
$findme  = 'some word';

$pos = strpos($filestring, $findme);

// Note the use of ===.  Simply == would not work as expected
// because the position of 'a' was the 0th (first) character.
if ($pos === false) {
   echo "The string '$findme' was not found in the url '$theurl'";
} else {
   echo "The string '$findme' was found in the url '$theurl'";
   echo " and exists at position $pos";
}

PHP: