Url_exists

[AlternativeNick 0]

i found this on php.net, and it worked for a little while, and now it doesnt work.

i changed some of it trying to fix it, but it always returns false.

function url_exists($url){	  if(!strstr($url, "http://")) { $url = "http://".$url; };   $fp = @fsockopen($url, 80);   if($fp === false) { return 'false'; } else { return true; };};

Edited February 2, 2007 by AlternativeNick (see edit history)

[Avalon 1]

i found this on php.net, and it worked for a little while, and now it doesnt work.
i changed some of it trying to fix it, but it always returns false.

function url_exists($url){	  if(!strstr($url, "http://")) { $url = "http://".$url; };   $fp = @fsockopen($url, 80);   if($fp === false) { return 'false'; } else { return true; };};

I'm not sure, but perhaps the last line of code with the "$fp === false" is the problem. Shouldn't that be "$fp == false"?

[QuickSilva 0]

function url_exists($url){if(!strstr($url, "http://")) { $url = "http://".$url; };$fp = @fsockopen($url, 80);if($fp === false) { return 'false'; } else { return true; };};

Right here goes. You are returning the text "false" and not just false, so that's problem one. Another problem I spotted was that you put a ";" after the "}", and you do not do that. So here is the code fixed:

function url_exists($url){if(!strstr($url, "http://")) { $url = "http://".$url; }$fp = @fsockopen($url, 80);if($fp === false) { return false; } else { return true; }}

And I believe it isn't to do with the ===, as that means if it returns something (I think).

[galexcd 0]

I'm not sure, but perhaps the last line of code with the "$fp === false" is the problem. Shouldn't that be "$fp == false"?

Should still work the same way

And I believe it isn't to do with the ===, as that means if it returns something (I think).

'===' means exact equivalence instead of just equivalence. Example:

if(false==0)//returns true
if(false===0)//returns false