PHP Simple HTML DOM Parser some pages issue

Question

I have a code for read all inputs in a form.

The code works in my demo page an others, but not work in some pages. For the example issue:

facebook:

$url = 'https://www.facebook.com';

$html = file_get_html($url);
$post = $html->find('form[id=reg]'); //id for the register facebook page

print_r($post);

Print an empty array.

Functional example:

$url = 'http://www.monografias.com/usuario/registro';

$html = file_get_html($url);

$post = $html->find('form[name=myform]');
print_r($post);

Print a form content

I would love to get some control cases to look at specifically. That way we are all looking at the same sets of data. — Fallenreaper
– Fallenreaper, Commented Jan 27, 2016 at 18:36
What nodes? I only need take the form content. The functional example works. why not in facebook for example? — Phyron
– Phyron, Commented Jan 27, 2016 at 18:37

Oleg Shemetov · Accepted Answer · 2016-01-27 18:40:40Z

1

Facebook won't give you registration form directly, it will only respond with basic html, and the rest will be created with javascript. see for yourself

$url = 'https://www.facebook.com';
$html = file_get_html($url);
echo htmlspecialchars($html);

there is no form with "reg" ID in the html they send you.

answered Jan 27, 2016 at 18:40

Oleg Shemetov

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2 Comments

Phyron Over a year ago

Yes, is this. I'ts imposible in this case?. When any web charge the code with javasrcipt?

Oleg Shemetov Over a year ago

I'm afraid the only way is to use a headless browser like phantomjs.org, save the evaluated result and parse it, but I think that's way too complex for a task at hand.

slbteam08 · Accepted Answer · 2016-01-27 18:36:34Z

1

simple_html_dom.php contains a line limiting the max file size it will parse:

define('MAX_FILE_SIZE', 600000);

For files larger than this size, file_get_html() will just return false.

answered Jan 27, 2016 at 18:36

slbteam08

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