php question

strstr and stristr don't return true? That's odd. Can you post code? It could be down to some silly error.

function prototype:
string strstr ( string haystack, string needle)

"Returns part of haystack string from the first occurrence of needle to the end of haystack."

for a boolean return, try this:
$in_string = is_string(strstr($haystack, $needle));

Abi: r u sure they are sposed to return true? im using php-4.2.3-Win32, is it different from what you are using? php manual says u get false or parts of the haystack.

Mark:
yeah i've tried the is_string method, for some reason it can go real screwy on a blank needle (dont ask me why:D)

I'm using file to turn a URL into an array(my haystack), reading each line of the array to check for an occurance of needle, if found, it does some other manipulations on the string from the array, pretty easy stuff really and it currently works, was just wondering if there was a specific function that returned two logical results, instead of 1, and a bit:D using is_string or strpos just doesnt seem "right" to me, seeing php seems to have such a vast code base, lacking this one function seems "weird"

$pos = strpos(strtolower($arts), strtolower($strW));
if ($pos === false) {

this is what im using currently, works, and also helps a bit because I use $pos in the next line of code for further string manipulation, so it kills two birds with one stone I spose. thanks fellas;)

hmmm ok wtf? lol looks like strstr CAN produce a boolean result... the manual is maybe wrong??

<?
if (strstr($_SERVER["HTTP_USER_AGENT"], "MSIE")) {
echo "You are using Internet Explorer";
}
?>

try it, works fine, I hate bad docco! lol

PHP assumes anything that is not NULL/0/FALSE to be TRUE (when compared as a boolean value). So, if strstr() returns a string, it will be evaluated as TRUE in an IF statement.

I know what you mean about the feeling wrong. Other high level languages have simple boolean functions like in_string(). You could always write a function to do this...