XML Xpath using PHP

本文关键字：PHP using Xpath XML | 更新日期: 2023-09-27

这是我的XML：

<div class="main">  
    <div class="workshoplist-main">
        <div class="toggler pointer">
            <i class="icon-chevron-down"></i> 
            <span id="rpt_0_lblSectionHeader_0">Wednesday, March 18, 2015 (10:00 AM - 11:00 AM)</span> 
            <p>Description of March info</p>
        </div>
    </div>
    <div class="workshoplist-main">
        <div class="toggler pointer">
            <i class="icon-chevron-down"></i> 
            <span id="rpt_0_lblSectionHeader_1">Thursday, April 16, 2015 (10:00 AM - 11:00 AM)</span> 
            <p>Description of April info</p>
        </div>
    </div>
    <div class="workshoplist-main">
        <div class="toggler pointer">
            <i class="icon-chevron-down"></i> 
            <span id="rpt_0_lblSectionHeader_2">Friday, March 19, 2015 (10:00 AM - 11:00 AM)</span> 
            <p>Description of March info</p>
        </div>
    </div>  
</div>

我想在包含id lblSectionHeader的span元素中查找单词March。

我想要的返回值是：

 Wednesday, March 18, 2015 (10:00 AM - 11:00 AM)
 Friday, March 19, 2015 (10:00 AM - 11:00 AM)

我的代码是：

xpath("//div[contains(@class,'workshoplist-main') and //span[contains(@id,'lblSectionHeader')][text()='March']]");

我没有得到任何结果。如果有人能帮忙，那就太好了。

以下查询有效：

$html = <<<'EOF'
    ... Your HTML comes here ...
EOF;
$doc = new DOMDocument();
$doc->loadHTML($html);
$selector = new DOMXPath($doc);
$query = "//div[contains(@class,'workshoplist-main')]//span[contains(@id,'lblSectionHeader')][contains(text(), 'March')]";
foreach($selector->query($query) as $node) {
    // do something with that node
    var_dump($node);
}

您在查询中误用了 and 关键字。如果要选择<div>标记下方<span>标记（无论嵌套级别如何），请使用 //div//span ，而不是//div and //span