Regular Expression to get contents of div class in php

Question

Hi, Is there any special syntax to get nested div element with unique class name in RegExp in php. Consider I have a syntax like

<div style="demo">
<div class="row">
    <div title="[email protected]" class="text">ABC</div>
</div>
<div class="row">
    <div title="[email protected]" class="text">PQR</div>
</div></div>

here how can we retrieve all emailids using RegExp and preg_match_all(). Thanks

Answer 1

Regex are bad at parsing HTML. Use a DOM Parser and this XPath:

//div[@style="demo"]/div[@class="row"]/div[@class="text"]/@title

If class="text" is exclusive to the divs you want to match, you can also do

//div[@class="text"]/@title

Also see:

• http://stackoverflow.com/search?q=html+dom+php

Answer 2

preg_match_all("/<div title=\"(.*)\" class=\"text\">/", $subject, $matches);

If the emails is the only data you want there are better regexps for matching emails only. See http://fightingforalostcause.net/misc/2006/compare-email-regex.php

Answer 3

<?php

$html = '<div style="demo">
<div class="row">
    <div title="[email protected]" class="text">ABC</div>
</div>
<div class="row">
    <div title="[email protected]" class="text">PQR</div>
</div></div>
';

$doc = DOMDocument::loadHTML($html);
$xpath = new DOMXPath($doc);

foreach($xpath->query('//div[@style="demo"]/div[@class="row"]/div[@class="text"]/@title') as $div){
    echo $div->value . PHP_EOL;
}

This assumes that the class attributes are exactly those (verbatim), but I hope you get the idea.