How to get data from HTML using regex - php

Question

I have following HTML
<table class="profile-stats">
<tr>
<td class="stat">
<div class="statnum">8</div>
<div class="statlabel"> Tweets </div>
</td>
<td class="stat">
<a href="/THEDJMHA/following">
<div class="statnum">13</div>
<div class="statlabel"> Following </div>
</a>
</td>
<td class="stat stat-last">
<a href="/THEDJMHA/followers">
<div class="statnum">22</div>
<div class="statlabel"> Followers </div>
</a>
</td>
</tr>
</table>
I want to get value from <td class="stat stat-last"> => <div class="statnum"> = 22.
I have tried the follow regex but does not any found match.
/<div\sclass="statnum">^(.)\?<\/div>/ig

Answer 1

Here's a way to accomplish this using a parser.
<?php
$html = '<table class="profile-stats">
<tr>
<td class="stat">
<div class="statnum">8</div>
<div class="statlabel"> Tweets </div>
</td>
<td class="stat">
<a href="/THEDJMHA/following">
<div class="statnum">13</div>
<div class="statlabel"> Following </div>
</a>
</td>
<td class="stat stat-last">
<a href="/THEDJMHA/followers">
<div class="statnum">22</div>
<div class="statlabel"> Followers </div>
</a>
</td>
</tr>
</table>';
$doc = new DOMDocument(); //make a dom object
$doc->loadHTML($html);
$tds = $doc->getElementsByTagName('td');
foreach ($tds as $cell) { //loop through all Cells
if(strpos($cell->getAttribute('class'), 'stat-last')){
$divs = $cell->getElementsByTagName('div');
foreach($divs as $div) { // loop through all divs of the cell
if($div->getAttribute('class') == 'statnum'){
echo $div->nodeValue;
}
}
}
}
Output:
22
...or using an xpath...
$doc = new DOMDocument(); //make a dom object
$doc->loadHTML($html);
$xpath = new DOMXpath($doc);
$statnums = $xpath->query("//td[#class='stat stat-last']/a/div[#class='statnum']");
foreach($statnums as $statnum) {
echo $statnum->nodeValue;
}
Output:
22
or if you realllly wanted to regex it...
<?php
$html = '<table class="profile-stats">
<tr>
<td class="stat">
<div class="statnum">8</div>
<div class="statlabel"> Tweets </div>
</td>
<td class="stat">
<a href="/THEDJMHA/following">
<div class="statnum">13</div>
<div class="statlabel"> Following </div>
</a>
</td>
<td class="stat stat-last">
<a href="/THEDJMHA/followers">
<div class="statnum">22</div>
<div class="statlabel"> Followers </div>
</a>
</td>
</tr>
</table>';
preg_match('~td class=".*?stat-last">.*?<div class="statnum">(.*?)<~s', $html, $num);
echo $num[1];
Output:
22
Regex demo: https://regex101.com/r/kM6kI2/1

Answer 2

I think it would be better if you use an XML parser for that instead of regex. SimpleXML can do the job for you: http://php.net/manual/en/book.simplexml.php

Answer 3

/<td class="stat stat-last">.*?<div class="statnum">(\d+)/si
Your match is in the first capture group. Notice the use of the s option at the end. Makes '.' match new line characters.

Answer 4

You can edit your pattern like that:
/<div\sclass="statnum">(.*?)<\/div>/ig