Splitting strings in PHP and get last part

split($pattern,$string) split strings within a given pattern or regex (it's deprecated since 5.3.0)

preg_split($pattern,$string) split strings within a given regex pattern

explode($pattern,$string) split strings within a given pattern

end($arr) get last array element

So:

end(split('-',$str))

end(preg_split('/-/',$str))

$strArray = explode('-',$str)
$lastElement = end($strArray)

Will return the last element of a - separated string.

---

And there's a hardcore way to do this:

$str = '1-2-3-4-5';
echo substr($str, strrpos($str, '-') + 1);
//      |            '--- get the last position of '-' and add 1(if don't substr will get '-' too)
//      '----- get the last piece of string after the last occurrence of '-'

$string = 'abc-123-xyz-789';
$exploded = explode('-', $string);
echo end($exploded);

EDIT::Finally got around to removing the E_STRICT issue

Just check whether or not the delimiting character exists, and either split or don't:

if (strpos($potentiallyDelimitedString, '-') !== FALSE) {
  found delimiter, so split
}