php function Str_word_count () to calculate the number of words in a string

Instance

Count the number of words in the string "Hello world!":

<?phpecho str_word_count ("Hello world!");? >

Definition and usage

The Str_word_count () function calculates the number of words in a string.

Grammar

Str_word_count (String,return,char)

parameters	description
string	required. Specifies the string to check.
return	optional. Specifies the return value of the Str_word_count () function. Possible values: 0-Default. Returns the number of words found. 1-Returns an array containing the words in the string. 2-Returns an array where the key name is the position of the word in the string, and the key value is the actual word.
char	optional. Specifies a special character that is identified as a word.

technical details

return value:	Returns a number or an array, depending on the return parameter selected.
php version:	4.3.0+
update log:	in PHP 5.1, a new char parameter was added.

More examples

Example 1

Returns an array containing the words in the string:

<?phpprint_r (Str_word_count ("Hello world!", 1));? >

Example 2

Returns an array where the key name is the position of the word in the string, and the key value is the actual word:

<?phpprint_r (Str_word_count ("Hello world!", 2));? >

Example 3

There are no char parameters and there are char parameters:

<?phpprint_r (Str_word_count ("Hello World & Good morning!", 1));p Rint_r ( Str_word_count ("Hello World & Good morning!", 1, "&"));