Separate space-delimited words in a string
Solution 1:
The easiest would be to use explode:
$words = explode(' ', $str);
But that does only accept fixed separators. split an preg_split do accept regular expressions so that your words can be separated by multiple spaces:
$words = split('\s+', $str);
// or
$words = preg_split('/\s+/', $str);
Now you can additionally remove leading and trailing spaces with trim:
$words = preg_split('/\s+/', trim($str));
Solution 2:
$words = explode( ' ', $str );
See: http://www.php.net/explode
Solution 3:
http://php.net/explode
edit: damn, Rob was faster