Using PHP, how do I remove HTML Text After/Before Certain Number of <br>

Question

Using PHP, how can I remove HTML text that is placed before/after a certain number of <br> tags?

For example, I have this,

<div>
    <div><img sec=""></div>
    <br>
    <h3>title</h3>
    <span>some text here</span>
    <br>
    Some text that I want to remove.
    <br>
    <br>
</div>

I'd like to remove the string before the last two <br> tags. Or It could be said after the second <br>.

I tried explode() with <br> and omitted the last two array elements with array_push(). However, I had to add </div> to close the outer tag. When the outer tag dynamically changes, it's not a good idea.

Does anybody have a solution for this?

Answer 1

Okey, this is what I've achieved. Although this might not be the most efficient way but I'll share. I used DOMinnerHTML() introduced here and preg_split(). This removes the text after the last three <br> tags.

<?php 
$html = <<<STR
<div>
    <div><img sec=""></div>
    <br>
    <h3>title</h3>
    <span>some text here</span>
    <br>
    Some text that I want to remove.
    <br>
    <br>
</div>
STR;

$doc = new DOMDocument;
$doc->loadHTML($html);
$node = $doc->getElementsByTagName('div')->item(0);
$innerHtml = DOMinnerHTML($node);
$arrHtml = preg_split('/<br.*?\/?>/i', $innerHtml);     // devide the string into arrays by <br> or <br />
array_splice($arrHtml, -3);     // remove the last three elements   
$edited = implode(" ", $arrHtml);

echo $edited;

function DOMinnerHTML($element) 
{ 
    $innerHTML = ""; 
    $children = $element->childNodes; 
    foreach ($children as $child) 
    { 
        $tmp_dom = new DOMDocument(); 
        $tmp_dom->appendChild($tmp_dom->importNode($child, true)); 
        $innerHTML.=trim($tmp_dom->saveHTML()); 
    } 
    return $innerHTML; 
} 
?>