Parse remote HTML document in PHP

@redagrJun 20.2019

Dear users,

I want to get a HTML document from a remote website using curl, and parse it via php.

About curl, I know how to do it, but when I get the HTML document in a php string, how can I parse it getting certain elements? (like js queryselector)

Thanks

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PHP

@ginerjmJun 20.2019 — #A quick search of the php.net manual gave me this function. Not sure if it gives you what you want but it may be a start

loadHTML() function (part of the domdocument group)

@NogDogJun 20.2019 — #https://php.net/DOM is the most robust approach, though it's a bit intimidating when you first look at the documentation. :) Ultimately it's similar to parsing the DOM in JavaScript/jQuery, though.

@redagrauthorJun 20.2019 — #Can you please post an example of which I want to do? I need querySelector, but I can't find it in documentation.

Thanks

@redagrauthorJul 01.2019 — #I can't do it. I receive many errors like these:

Warning: DOMDocument::loadHTML(): Tag main invalid in Entity, line: 66 in /home/www.site.com/z.php on line 509

Warning: DOMDocument::loadHTML(): Tag section invalid in Entity, line: 67 in /home/www.site.com/z.php on line 509

Warning: DOMDocument::loadHTML(): Tag section invalid in Entity, line: 69 in /home/www.site.com/z.php on line 509

Warning: DOMDocument::loadHTML(): Tag aside invalid in Entity, line: 70 in /home/www.site.com/z.php on line 509

Warning: DOMDocument::loadHTML(): htmlParseEntityRef: expecting ';' in Entity, line: 72 in /home/www.site.com/z.php on line 509

And many others errors.

I want only to parse some <meta> tags in head of html document to withdraw the contents.

Can you help me?

Thanks

@SempervivumJul 01.2019 — #DOMDocument's parser doesn't know about the new semantic tags of HTML5 (yet?). However I experienced that the document is parced successfully in spite of these errros and that these tags can be accessed.

@NogDogJul 01.2019 — #Yeah, I usually have to add the optional parameter that suppresses warnings. :)

e.g.:

<i>
 </i>$dom-&gt;loadHTMLFile($myFile, LIBXML_NOWARNING);

@SempervivumJul 01.2019 — #PS:
I want only to parse some <meta> tags in head of html document to withdraw the contents.[/quote]
Check if the function get_meta_tags can do this

https://www.php.net/manual/en/function.get-meta-tags.php

Parse remote HTML document in PHP

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