Shorten string with a "..." body

Question

Just like the the iPhone's app names that run to long, the name gets shortened. I really like this method of shorting a name or a string rather then appending a "..." clause to it. Sorry if I am being confusing, I'm having trouble explaining what I am trying to do. So I'll show an example!

This is what I have, to append "..." to a shortened string (In PHP)

<?php
  $string = "This is a test script";

  if (strlen($string) >= 14)
    echo(substr($string), 0, 13). "..."); // This is a test...
  else
    echo($string); // This is a test script
?>

I would like to split up the name or string and keep the first say 10 characters, then insert "..." in the middle and lastly take the ending 5 letters of the string and display them. I was thinking of something along the lines of:

<?php
  $string = "This is a test script";

  if (strlen($string) >= 20)
    echo(substr($string, 0, 10). "..." .substr($string, 15, 20)); //This is a ...script
  else
    echo($string);
?>

But realize that will not work in the regards that there are more then just 5 letters in the end. Any pointers into the write direction would be great, Thanks!

Answer 1

if (strlen($string) >= 20) {
    echo substr($string, 0, 10). " ... " . substr($string, -5);
}
else {
    echo $string;
}

Answer 2

The third argument of substr() is a length, not an end. Just pass 5 instead.

Also, substr($string, -5).

Answer 3

More generalized solution

function str_short($string, $length, $lastLength = 0, $symbol = '...')
{
    if (strlen($string) > $length) {
        $result = substr($string, 0, $length - $lastLength - strlen($symbol)) . $symbol;
        return $result . ($lastLength ? substr($string, - $lastLength) : '');
    }

    return $string;
}

usage

str_short(string, 20, 5, ' ... ')}}