数据采集利器——PHP Simple HTML DOM Parser

2014-09-19 08:25:46

PHP Simple HTML DOM Parser（PHP实现的简单的HTML DOM解析器）。

Description, Requirement & Features

  • A HTML DOM parser written in PHP5+ let you manipulate HTML in a very easy way!
  • Require PHP 5+.
  • Supports invalid HTML.
  • Find tags on an HTML page with selectors just like jQuery.
  • Extract contents from HTML in a single line.

Download & Documents

Quick Start

  • How to get HTML elements?

[php]

// Create DOM from URL or file
$html = file_get_html(‘http://www.google.com/’);

// Find all images
foreach($html->find(‘img’) as $element)
echo $element->src . ‘
’;

// Find all links
foreach($html->find(‘a’) as $element)
echo $element->href . ‘
’;

[/php]

  • How to modify HTML elements?

[php]

// Create DOM from string
$html = str_get_html(‘

Hello
World
’);

$html->find(‘div’, 1)->class = ‘bar’;

$html->find(‘div[id=hello]’, 0)->innertext = ‘foo’;

echo $html; // Output:

foo
<div id="world" class="bar">World

[/php]

  • Extract contents from HTML

[php]

// Dump contents (without tags) from HTML
echo file_get_html(‘http://www.google.com/’)->plaintext;

[/php]

  • Scraping Slashdot!

[php]

// Create DOM from URL
$html = file_get_html(‘http://slashdot.org/’);

// Find all article blocks
foreach($html->find(‘div.article’) as $article) {
$item[‘title’]     = $article->find(‘div.title’, 0)->plaintext;
$item[‘intro’]    = $article->find(‘div.intro’, 0)->plaintext;
$item[‘details’] = $article->find(‘div.details’, 0)->plaintext;
$articles[] = $item;
}

print_r($articles);

[/php]