PHP function that removes the last part of a string.

PHP: Remove last part of String

/**
 * Remove the last part of a string.
 *
 * This function removes the last part of a string, conditioned on spaces
 * inbetween the parts. Like words, in a sentence.
 *
 * @param String $string The string.
 **/
function str_remove_lastpart($string) {
  $string_parts = explode(' ',$string);
  unset($string_parts[count($string_parts)-1]);
  return implode(' ',$string_parts);
}