can i validate xhtml programmatically from a php script?

Question

I would like to have a PHP function to check if a URL returns valid HTML or NOT, and returns true or false.

Something like:

if (validate_page("/somefile.html")) { echo "This page validated!!"; }

I found TWINE but it doesn't just give me true or false. Also I got an error running it on my system. http://twineproject.sourceforge.net/

I found this offline tool that looked promising. http://htmlhelp.com/tools/validator/offline/

Also I found this thread that talks about a gem, but it sounds problematic. How do I validate XHTML with nokogiri?

The thread talking about a gem is about Ruby (a gem is a package), not PHP. — Arc
– Arc, Commented Sep 15, 2010 at 5:27

Gipetto · Accepted Answer · 2010-09-15 05:32:29Z

2

Tidy?

Validate: http://us.php.net/manual/en/function.tidy-diagnose.php
Repair: http://us.php.net/manual/en/tidy.repairstring.php

answered Sep 15, 2010 at 5:32

Gipetto

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dylanized Over a year ago

this looks promising, I'll try it out!

NullUserException · Accepted Answer · 2010-09-15 05:16:24Z

1

You can use W3C's validator API. There's a PHP library available through PEAR (click here) which uses said API.

You can also install the validator on your local server (instructions here), though you might not have sufficient permissions to do so if you are using shared hosting.

answered Sep 15, 2010 at 5:16

NullUserException

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dylanized Over a year ago

This is what I ended up using, thanks for this answer. Sorry for belated response

Arc · Accepted Answer · 2010-09-15 05:25:38Z

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You could also try DOMDocument->validate() if you are using PHP 5 and if the document contains a DTD.

http://www.php.net/manual/en/domdocument.validate.php

answered Sep 15, 2010 at 5:25

Arc

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oezi · Accepted Answer · 2010-09-15 05:18:12Z

0

xhtml hast to be valid xml - if you only want to check that, you could easily use simplexml, but if you also want to check for correct elements/attributes this won't help you (in that case, NullUserExceptions hint to W3C's validator API would be the best solution to choose).

answered Sep 15, 2010 at 5:18

oezi

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bcosca · Accepted Answer · 2010-09-15 05:26:47Z

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libxml_use_internal_errors ( true );
$doc = new DOMDocument;
$doc -> loadHTMLFile ( $file ); // load the file you want validated
var_dump ( libxml_get_errors () );

answered Sep 15, 2010 at 5:26

bcosca

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dylanized Over a year ago

Thanks for this code sample! I got this working, but it gave me a false positive on one of my test cases. Also it only works on static fules (not php templates). But good enough for now, thanks!

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