preg_match get div content with class - php

Question

i have code like that
<div class="x-ic test"><div class="abc">Test</div><table>.......</table><p>....</p><div style="margin:5px;"></div></div>
i tried a few pattern but i didnt get result i want.
and i need to get result below
<div class="abc">Test</div><table>.......</table><p>....</p><div style="margin:5px;"></div>

Answer 1

Use DOMDocument - I've written the code into functions in case you want to perform similar operations again:
function DOMinnerHTML(DOMNode $element)
{
$innerHTML = "";
$children = $element->childNodes;
foreach ($children as $child)
{
$innerHTML .= $element->ownerDocument->saveHTML($child);
}
return $innerHTML;
}
function getElContentsByTagClass($html,$tag,$class)
{
$doc = new DOMDocument();
$doc->loadHTML($html);//Turn the $html string into a DOM document
$els = $doc->getElementsByTagName($tag); //Find the elements matching our tag name ("div" in this example)
foreach($els as $el)
{
//for each element, get the class, and if it matches return it's contents
$classAttr = $el->getAttribute("class");
if(preg_match('#\b'.$class.'\b#',$classAttr) > 0) return DOMinnerHTML($el);
}
}
//Calling it:
$html = '<div class="x-ic test"><div class="abc">Test</div><table>.......</table><p>....</p><div style="margin:5px;"></div></div>';
$ret = getElContentsByTagClass($html,'div','x-ic test');//<div class="abc">Test</div><table>.......</table><p>....</p><div style="margin:5px;"></div>
PHP Fiddle - Run (F9)

Answer 2

To achieve this with regex:
<?php
$html = '<div class="x-ic test"><div class="abc">Test</div><table>.......</table><p>....</p><div style="margin:5px;"></div></div>';
$split = preg_replace('#^<div class="x-ic test">|</div>$#', '' , $html);
var_dump($split);
?>

Answer 3

The easy and adviced way to manipulate html is using DOM. I personally use PHP Simple HTML DOM Parser to do that.
But since i'm practicing REGEX, here's an answer using regex :) :
$text = '<div class="x-ic test"><div class="abc">Test</div><table>.......</table><p>....</p><div style="margin:5px;"></div></div>';
$text = preg_replace('/^(.*)(<div class="abc">.*)(<\/div>)$/', '$2', $text);
// OUTPUT:
<div class="abc">Test</div><table>.......</table><p>....</p><div style="margin:5px;"></div>
You can try it HERE
Cheers :)