Handle errors in simple html dom - php

Question

I have some code to get some public available data that i am fetching from a website
//Array of params
foreach($params as $par){
$html = file_get_html('WEBSITE.COM/$par');
$name = $html->find('div[class=name]');
$link = $html->find('div[class=secondName]');
foreach($link as $i => $result2)
{
$var = $name[$i]->plaintext;
echo $result2->href,"<br>";
//Insert to database
}
}
So it goes to the given website with a different parameter in the URL each time on the loop, i keep getting errors that breaks the script when a 404 comes up or a server temporarily unavailable. I have tried code to check the headers and check if the $html is an object first but i still get the errors, is there a way i can just skip the errors and leave them out and carry on with the script?
Code i have tried to checked headers
function url_exists($url){
if ((strpos($url, "http")) === false) $url = "http://" . $url;
$headers = #get_headers($url);
//print_r($headers);
if (is_array($headers)){
//Check for http error here....should add checks for other errors too...
if(strpos($headers[0], '404 Not Found'))
return false;
else
return true;
}
else
return false;
}
Code i have tried to check if object
if (method_exists($html,"find")) {
// then check if the html element exists to avoid trying to parse non-html
if ($html->find('html')) {
// and only then start searching (and manipulating) the dom

Answer 1

You need to be more specific, what kind of errors are you getting? Which line errors out?
Edit: Since you did specify the errors you're getting, here's what to do:
I've noticed you're using SINGLE quotes with a string that contains variables. This won't work, use double quotes instead, i.e.:
$html = file_get_html("WEBSITE.COM/$par");
Perhaps this is the issue?
Also, you could use file_get_contents()
if (file_get_contents("WEBSITE.COM/$par") !== false) {
...
}