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Im using this ti search for specific text in a webpage:
But when I try searching a .php webpage I get errors. Any ideas ?HTML Code:<?php
$link = "http://www.test.com/";
$linkcontents = file_get_contents($link);
$needle = "Hello";
if (strpos($linkcontents, $needle) == false) {
echo "String not found";
} else {
echo "String found";
}
?>
really? you get errors? what kind of errors?
-tg
Here is the error that its displaying:
Quote:
Warning: file_get_contents(http://www.test.com/member.php?) [function.file-get-contents]: failed to open stream: HTTP request failed!
Thats not the URL, its just an example.
are you trying to get the file itself, or the rendered output of the file? two very different things...
-tg
Im just trying locate a specific line of text or string on a php page and echo yes if its found and no if its not found.
"HTTP request failed" means that the URL you put in file_get_contents() was not found, or had some other problem such that the URL could not be accessed. Make sure your URL is valid and publically accessible - try going to the URL in your browser.
Yes the page is publically viewable, I wonder is it because the page is php and the rendered content is not actually in the file , its the php thats rendering the information onto the webpage itself ?
I think it's more than that... file_get_contents gets the contents of the FILE... which isn't the same as getting the rendered output... for good reason, the poster SHOULDN'T be able to get to the contents of a PHP file... that's why I asked if he was trying to get the file itself or the rendered out put. I'm still not sure I got an acceptable answer.
-tg
Im sorry, Im trying to get a specifis string in the rendered out put of , example (http://www.test.com/member.php?)
If you use file_get_contents() with a URL (not a file path), it will get the markup of the rendered output of the page.
And that aside, a failed HTTP request seems unambiguous to me; your script could not access the resource you requested in file_get_contents(). When I go to "http://www.test.com/member.php?" I get an error 404 - an HTTP error signifying that the resource isn't there. I think you said this isn't the actual URL you're using, but if you want an example, try "http://www.test.com" instead (or "http://www.example.com"), which does not return any HTTP errors when you try to access it.
Yes thats true, but I need to get the text string from "http://www.test.com/member.php" << example url
You can't get the text string of the page if the page does not exist. As far as I can see, "http://www.test.com/member.php" does not exist (are you not seeing "Server Error - 404 - File or directory not found" when you try to access this URL in a browser?). If you're using this URL as an example to test, it will not work.
I'm pretty sure he's still using that as simply an example to get the idea across to us (and he's not literally trying to load that page in his script).
dunlop03, we might not be able to help you figure out what's wrong if you don't give us the actual code you're using and getting this error with. file_get_contents() does exactly what you want it to do: it will load a local file or load the rendered output of a file when using a URL.
However, file_get_contents() (like fopen and other file-opening functions) requires the fopen wrappers to be enabled (as noted in the documentation for the function). You can enable these wrappers by setting the PHP ini directive allow_url_fopen to true.
PHP ought to produce a different error if this were the problem.Quote:
However, file_get_contents() (like fopen and other file-opening functions) requires the fopen wrappers to be enabled
I'm not sure whether or not it would. But, considering how little information has been given in this thread as to the actual URL being used, it's the only other thing I could think of if dunlop03 is really doing everything properly.
It would, I checked; if allow_url_fopen is Off, you get "http:// wrapper is disabled in the server configuration by allow_url_fopen", followed by "failed to open stream: no suitable wrapper could be found in ...". As opposed to when allow_url_fopen is On, and I try fetching a non-existent page, I get the exact error that dunlop03 posted: Failed HTTP Request.Quote:
I'm not sure whether or not it would.
I know that's not absolute proof, but it seems solid enough to me. Of course it doesn't hurt to just check the status of allow_url_fopen anyway.
It's funny because the exact code that dunlop03 posted in the original post works just fine for me. It's only the insistence upon this 404'ing URL where it doesn't work. I get that "it's just an example," but examples are for illustrative purposes: your example does not work for reason X and it's possible that your real URL is not working for reason X also. If you're not going to give us the real URL, then we only have the example to work with.
TL;DR: kows already said the important bit:
Quote:
dunlop03, we might not be able to help you figure out what's wrong if you don't give us the actual code you're using and getting this error with.
Sry for the late reply.
Ok for example, If i click on one of your usernames here and view your profile page , Im trying to find specific text/string or html element, like soI'll use SambaNeko's profile as an example http://www.vbforums.com/member.php?u=115476 . If you view his page, under his username it displays "Frenzied Member" , I want this script to detect that text and echo "String Found"Code:<img src="image here"/>
Or
I want it to detect a html element, for example on SambaNeko's profile again, theres an imageI want the script to detect that specific html element and echo "String Found"Code:<img title="SambaNeko is offline" class="inlineimg" src="images/statusicon/user_offline.gif" alt="SambaNeko is offline" border="0">
I hope you understand what Im trying to acheive, thanks again guys.
The problem is that the profile pages are only available when you're logged in.
A plain file_get_contents() does not have a session like you have when you visit the page in the browser.
That may be the case here, but the actuall forum im using allows guests to view the profile page. So the page is publically viewable.
Then you can use the same code you posted in your very first post: there is nothing wrong with your code. The only problems you have made clear to us are problems with HTTP access - either because the URL was not found, or because the URL requires login.Quote:
That may be the case here, but the actuall forum im using allows guests to view the profile page. So the page is publically viewable.