Get html block by PHP

Question

We have html page, it has many code inside.

Sometimes it has block #container, sometimes not.

All code of this page is inside $page variable.

How do I:

check, is there block with id="container"?
if html page has #container inside, then get it contents of this block and write to a variable $container.

Task should be done by php.

@NullUserException and they are slow as hell. Given that an id can only be used once, use a regex to check for id="container" then only take the performance hit of firing up the parser if necessary. — Endophage
– Endophage, Commented Mar 3, 2011 at 19:40

akrisanov · Accepted Answer · 2017-05-05 08:49:56Z

5

One of the possible ways to solve your problem is to use third party library. Let's say http://simplehtmldom.sourceforge.net/:

$html->load($page);
if ($html->find('#container')) $container = $html->find('#container');

answered Mar 3, 2011 at 19:35

akrisanov

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Comments

Shahor · Accepted Answer · 2011-03-03 19:35:53Z

-2

Regexp is your friend here.

Good luck for your html parsing trip

answered Mar 3, 2011 at 19:35

Shahor

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Regex is a terrible solution for parsing HTML.