Abhishek Madhani Abhishek Madhani - 7 months ago 23
HTML Question

Using PHP DOM document, to select HTML element by its class and get its text

I trying to get text from div where class = 'review-text', by using PHP's DOM element with following HTML (same structure) and following code.

However this doesn't seem to work


  1. HTML

    $html = '
    <div class="page-wrapper">
    <section class="page single-review" itemtype="http://schema.org/Review" itemscope="" itemprop="review">
    <article class="review clearfix">
    <div class="review-content">
    <div class="review-text" itemprop="reviewBody">
    Outstanding ...
    </div>
    </div>
    </article>
    </section>
    </div>
    ';

  2. PHP Code

    $classname = 'review-text';
    $dom = new DOMDocument;
    $dom->loadHTML($html);
    $xpath = new DOMXPath($dom);
    $results = $xpath->query("//*[@class and contains(concat(' ', normalize-space(@class), ' '), ' $classname ')]");

    if ($results->length > 0) {
    echo $review = $results->item(0)->nodeValue;
    }



The XPATH syntax to select element by Class is provided at this Blog

I have tried many example from StackOverflow, online tutorials, but none seems to work. Am I missing something ?

Answer

The following XPath query does what you want. Just replace the argument provided to $xpath->query with the following:

//div[@class="review-text"]

Edit: For easy development, you can test your own XPath query's online at http://www.xpathtester.com/test.

Edit2: Tested this code; it worked perfectly.

<?php

$html = '
    <div class="page-wrapper">
        <section class="page single-review" itemtype="http://schema.org/Review" itemscope="" itemprop="review">
            <article class="review clearfix">
                <div class="review-content">
                    <div class="review-text" itemprop="reviewBody">
                    Outstanding ... 
                    </div>
                </div>
            </article>
        </section>
    </div>
';

$classname = 'review-text';
$dom = new DOMDocument;
$dom->loadHTML($html);
$xpath = new DOMXPath($dom);
$results = $xpath->query("//*[@class='" . $classname . "']");

if ($results->length > 0) {
    echo $review = $results->item(0)->nodeValue;
}

?>