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.