CODEWITHSUNDEEP
phpsimple-html-dom
user7587888
user7587888

Reputation: 97

How to handle http request failure in simple html dom

When I try to scrape data from some website using say $url using simple html DOM . After few days links get outdated and i get an saying http request failed.So instead of displaying that error.I want to display something else that I want.

For example here is the code :

<?
$html=file_get_html($url);
$title=$html->find("stuff that I want to extract",0)->plaintext;
if($title)
{
echo $title;

}
else{
echo 'problem';
}

 ?>

In the above example it displays problem only if that data is not found but I need to display problem if I get http request errors too.

Upvotes: 3

Views: 1636

Answers (1)

Naincy
Naincy

Reputation: 2943

error_reporting level is a valid solution. This can throw exceptions and you can use that to handle your errors. There are many reasons why file_get_html might generate warnings, and PHP's manual itself recommends lowering error_reporting.

Or might be this will help you:

$html = file_get_html($url) or die('this is not a valid url');

file_get_html returns false if any issue while getting data.

$html = file_get_html($url);
if ($html) {
 // code
} else {
 // error
}

Use Try-Catch

try {
    $html = file_get_html(trim($url)); 
} catch (Exception $e) {
    // handle error here
}

Suggestion: Use CURL to get the URL and handle the error response.

Upvotes: 2

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