Counts the number of words inside
string. If the optional
format is not specified, then the return value will
be an integer representing the number of words found. In the
event the format is
specified, the return value will be an array, content of
which is dependent on the
format. The possible value for the format and the resultant outputs are
listed below.
1 - returns an array containing all the words found
inside the string.
2 - returns an associative array, where the key is
the numeric position of the word inside the string and the value is the
actual word itself.
For the purpose of this function, 'word' is defined as a
locale dependent string containing alphabetic characters,
which also may contain, but not start with "'" and "-"
characters.