php解析與dom

Question

我有一個解析URL的問題。我想用dom來做，但我不知道從哪裏開始。我只想從下面的代碼解析src。任何想法都會非常感謝你。

<script type="text/javascript" src="http://website.com/?code-ajax&cd=1145040425"></script> 

Answer 1

$doc = new DOMDocument(); 
$doc->loadXML($xml); 
$src = $doc->documentElement->getAttribute('src'); 

---

的XPath例如，使用遠程文件

$doc = new DOMDocument(); 
$doc->loadHTMLFile($url); 
$xpath = new DOMXpath($doc); 

// Retrieve collections of script nodes 
$allScripts = $xpath->query('//script'); 
$headScripts = $xpath->query('/html/head/script'); 
$bodyScripts = $xpath->query('/html/body/script'); 

// Get all scripts who's src attribute starts with "http://website.com" 
$websiteScripts = $xpath->query('//script[starts-with(@src, "http://website.com")]'); 
if ($websiteScripts->length) { 
    // contains one or more matches 
    $src = $websiteScripts->item(0)->getAttribute('src'); 
} 

Answer 2

我最喜歡的解決方案是simplehtmldom PHP庫，它是很多簡單的比PHP的本地解決方案中使用;我從經驗中這樣說。它的語法和用法與jQuery相似。

你可以使用它像這樣

include('lib/simple_html_dom.php'); 
$html = str_get_html('<script type="text/javascript" src="http://website.com/?code-ajax&cd=1145040425"></script>'); 
$scriptsrc = $html->find('script',0)->src; 

Answer 3

使用SimpleHTMLDom庫：

<?php 
    // include the SimpleHTMLDom library 
    include('lib/simple_html_dom.php'); 

    // our input string 
    $input = '<script type="text/javascript" src="http://website.com/?code-ajax&cd=1145040425"></script>'; 

    // create our Object. If reading from a file, use: file_get_html('/path/to/file'); 
    $doc = str_get_html($input); 

    // find the first <script> tag, and echo its 'src' attribute. 
    // -- note: calling this with find('script') returns an array 
    echo $doc->find('script',0)->src; 
?>