Question

We have variable $menu with HTML inside (there is no loop, it comes from a function).

On echo it gives the code like this:

<ul id="menu">
    <li id="some-id" class="many classes"><a title="one" href="#">text</a></li>
    <li id="some-id" class="many classes"><a href="#">text</a></li>
    <li id="some-id" class="many classes"><a title="three" href="#">text</a></li>
</ul>

What I want to do:

1. get value of the title="" of each link, and move it to the end of parent <li> class.

2. remove title="" from each link.

Code inside variable $menu should become:

<ul id="menu">
    <li id="some-id" class="many classes one"><a href="#">text</a></li>
    <li id="some-id" class="many classes"><a href="#">text</a></li>
    <li id="some-id" class="many classes three"><a href="#">text</a></li>
</ul>

What is the solution?

Answer 1

It’s not a perfect solution, but it has worked in my testing (Regex Buddy & XAMPP) with your sample code.

$pattern = '/(<li [^>]*)(?:class=(?:"([^"]+)"|\'([^\']+)\'))([^>]*><a[^>]*)(?:title=(?:"([^"]+)"|\'([^\']+)\'))\s([^>]*>)(.*?<\/li>)/im';
$replace = '$1class="$2 $5"$4$7$8';

preg_replace( $pattern , $replace , $menu );