Question

Here is what I want to do..

Lets say I am looking for the link “example.com” in a file at http://example.com/test.html“.

I want to take a PHP script that looks for an in the mentioned website. However, I also need it to work if there is a class or ID tag in the <A>.

Answer 1

See below url

How can I check if a URL exists via PHP?

or try it

$file = 'http://www.domain.com/somefile.jpg';
$file_headers = @get_headers($file);
if($file_headers[0] == 'HTTP/1.1 404 Not Found') {
    $exists = false;
}
else {
    $exists = true;
}

From here: http://www.php.net/manual/en/function.file-exists.php#75064

…and right below the above post, there’s a curl solution:

function url_exists($url) {
    if (!$fp = curl_init($url)) return false;
    return true;
}

Update code:-

You can use SimpleHtmlDom Class for find id or class in tag

see the below URL

http://simplehtmldom.sourceforge.net/

http://simplehtmldom.sourceforge.net/manual_api.htm

http://sourceforge.net/projects/simplehtmldom/files/

http://davidwalsh.name/php-notifications