Question

Okay, let’s say I have this string:

<div class='box'>i like the world</div><div class='box'>i like my computer</div>

How would I go about echoing the divs that contain the word “world”?
Would this envolve some sort of regex?

Thank you so much in advance.

Answer 1

Using DOMDocument and DOMXPath you can easily do this:

<?php

$html = "<div class='box'>i like the world</div><div class='box'>i like my computer</div>";
$doc = new DOMDOcument();
$doc->loadHTML($html);

$xPath = new DOMXPath($doc);
$nodes = $xPath->query("//div[contains(text(),'world')]");

Now $nodes contain all the div elements which contain the word world.

Demo: http://codepad.viper-7.com/Dhalvh

Please note that you don’t want to try to parse HTML with regex, because it’s a matter of when and not if it is going to break.