Truncate a string, leave beginning and end, dot dot dot the middle

cut-out-the-middle.php

<?php
    $content = "A long string of text with an important word at the end";

    $posfront = strpos($content, ' ', 10);
    $first = substr($content, 0, $posfront);
    $posend = strrpos($content, ' ', -10);
    $last = substr($content, $posend);
    
    //echo $posfront . '<br>';
    //echo $first . '<br>';
    //echo $last . '<br>';
    
    echo $first . ' &hellip; ' . $last;
?>