Question

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How to parse and process HTML with PHP?

I’m pretty new to PHP.
I have the text of a body tag of some page in a string variable.
I’d like to know if it contains some tag … where the tag name tag1 is given, and if so, take only that tag from the string.
How can I do that simply in PHP?

Thanks!!

Answer 1

You would be looking at something like this:

<?php
$content = "";
$doc = new DOMDocument();
$doc->load("example.html");
$items = $doc->getElementsByTagName('tag1');
if(count($items) > 0) //Only if tag1 items are found 
{
    foreach ($items as $tag1)
    {
         // Do something with $tag1->nodeValue and save your modifications
         $content .= $tag1->nodeValue;
    }
}
else
{
     $content = $doc->saveHTML();
}
echo $content;
?>

DomDocument represents an entire HTML or XML document; serves as the root of the document tree. So you will have a valid markup, and by finding elements By Tag Name you won’t find comments.