file_get_html cant open stream - php

Question

I'm using html_dom to scrape a website.
$url = $_POST["textfield"];
$html = file_get_html($url);
html_dom.php
function file_get_html($url, $use_include_path = false, $context=null, $offset = -1, $maxLen=-1, $lowercase = true, $forceTagsClosed=true, $target_charset = DEFAULT_TARGET_CHARSET, $stripRN=true, $defaultBRText=DEFAULT_BR_TEXT, $defaultSpanText=DEFAULT_SPAN_TEXT)
{
// We DO force the tags to be terminated.
$dom = new simple_html_dom(null, $lowercase, $forceTagsClosed, $target_charset, $stripRN, $defaultBRText, $defaultSpanText);
// For sourceforge users: uncomment the next line and comment the retreive_url_contents line 2 lines down if it is not already done.
$contents = file_get_contents($url, $use_include_path, $context);
// Paperg - use our own mechanism for getting the contents as we want to control the timeout.
//$contents = retrieve_url_contents($url);
if (empty($contents) || strlen($contents) > MAX_FILE_SIZE)
{
return false;
}
// The second parameter can force the selectors to all be lowercase.
$dom->load($contents, $lowercase, $stripRN);
return $dom;
}
The problem is if the internet connection is too slow it is still going for the file_get_html then it will be a warning error saying failed to open stream and fatal error: 30 seconds max execution time. I tried to solve it by stoping the function if it detected a Warning error:
function errHandle($errNo, $errStr, $errFile, $errLine) {
$msg = "Slow Internet Connection";
if ($errNo == E_NOTICE || $errNo == E_WARNING) {
throw new ErrorException($msg, $errNo);
} else {
echo $msg;
}
}
set_error_handler('errHandle');
But it still printing the fatal error on execution time. Any idea on how i can solve this?

Answer 1

If it takes to long you could increase the time limit:
http://php.net/manual/en/function.set-time-limit.php
You can't catch a fatal in php 5.6 or below. In php 7+ you can with
try {
doSomething();
} catch (\Throwable $exception) {
// error handling
echo $exception->getMessage();
}
Not sure if you can catch the execution time limit though.