如何在PHP中獲取Span標籤文本？

Question

我正在用PHP抓取一個網站。我已經刮掉了所有必需的數據，但我無法颳去span標籤文本。

預期輸出：Apr 20,2017

<span title="" data-toggle="tooltip" data-original-title="Posted On"> 
             <i class="calendar rz-calendar"></i>Apr 20, 2017 
            </span> 
$html = file_get_contents($url); 
libxml_use_internal_errors(true); 
$doc = new DOMDocument; 
$doc->loadHTML($html); 
$xpath = new DOMXpath($doc); 

$node = $xpath->query('//span[@data-original-title="Posted ON"]'); 

Answer 1

問題在你的代碼是//span[@data-original-title="Posted ON"]ON是不是在首都就是這個樣子On

Try this code snippet here

<?php 
ini_set('display_errors', 1); 


$doc = new DOMDocument; 
$doc->loadHTML('<span title="" data-toggle="tooltip" data-original-title="Posted On"> 
             <i class="calendar rz-calendar"></i>Apr 20, 2017 
            </span>'); 
$xpath = new DOMXpath($doc); 
$nodeList = $xpath->query('//span[@data-original-title="Posted On"]'); 
foreach($nodeList as $node) 
{ 
    echo trim($node->textContent); 
}