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HTML5Lib - PHP flavour

This is an implementation of the tokenization and tree-building parts of the HTML5 specification in PHP. Potential uses of this library can be found in web-scrapers and HTML filters.

Warning: This is a pre-alpha release, and as such, certain parts of this code are not up-to-snuff (e.g. error reporting and performance). However, the code is very close to spec and passes 100% of tests not related to parse errors. Nevertheless, expect to have to update your code on the next upgrade.

This fork combines the work of html5lib/html5lib-php and lavoiesl/php-html5lib, and can be used with composer through Packagist:

{
  "require": {
    "soundasleep/html5lib-php": "~0.1.3"
  }
}

Usage notes

<?php
use HTML5Lib\Parser;
$dom = Parser::parse('<html><body>...');
$nodelist = Parser::parseFragment('<b>Boo</b><br>');
$nodelist = Parser::parseFragment('<td>Bar</td>', 'table');
?>

Documentation

Parser::parse($text)
    $text  : HTML to parse
    return : DOMDocument of parsed document

Parser::parseFragment($text, $context)
    $text    : HTML to parse
    $context : String name of context element
    return   : DOMDocument of parsed document

Developer notes

  • To setup unit tests, you need to add a small stub file test-settings.php that contains $simpletest_location = 'path/to/simpletest/'; This needs to be version 1.1 (or, until that is released, SVN trunk) of SimpleTest.

  • We don't want to ultimately use PHP's DOM because it is not tolerant of certain types of errors that HTML 5 allows (for example, an element "foo@bar"). But the current implementation uses it, since it's easy. Eventually, this html5lib implementation will get a version of SimpleTree; and may possibly start using that by default.

  • The original implementation of this performed line and column tracking in place. However, it was found that this approximately doubled the runtime of tokenization, so we decided to take a more optimistic approach: only calculate line/column numbers when explicitly asked to. This is slower if we attempt to calculate line/column numbers for everything in the document, but if there is a small enough number of errors it is a great improvement.

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PHP port of html5lib, currently unmaintained.

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