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PHP str_word_count() Function Usage and Example

　　 The str_word_count() function is used to calculate the number of words in a string.

Syntax

mixed str_word_count(string $string[, int $format = 0[, string $charlist]])

Definition and Usage

Counts the number of words in the string. If the optional parameter format is not specified, the return value is an integer representing the number of words. If the format parameter is specified, the return value will be an array, the content of which depends on the format parameter. The possible values and corresponding output results are listed as follows.
For the purpose of this function, the definition of a word is a string related to the locale. This string can contain letter characters, as well as "'" and ".-" character (but cannot start with these two characters).

PHP 5.1.0 Version Added charlist Parameter.

Return Value

　Returns an array or an integer depending on the choice of the format parameter.

Parameter

Serial Number	Parameters and Description
1	string Required. Specify the string to be checked.
2	format Optional. Specify 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.
3	charlist Optional. An additional string list, where the characters are considered as part of the word.

Online Example

Try the following example, which returns an array containing the words in the string and calculates the number of words in the string:

Example

<?php
　　　//Calculates the number of words in a string.
　　　echo str_word_count("w3codebox simply easy learning");
　　　//Returns an array containing the words in the string
　　　print_r(str_word_count("Can i help you!",1));
　　　//without charlist parameter
　　　print_r(str_word_count("Can i help you & what's your name!",1));
　　　//with charlist parameter
　　　print_r(str_word_count("Can i help you & what's your name!",1';
?>

Test and see‹/›

Output Result

4
Array
(
　　　　[0] => Can
　　　　[1=> i
　　　　[2=> help
　　　　[3=> you
)
Array
(
　　　　[0] => Can
　　　　[1=> i
　　　　[2=> help
　　　　[3=> you
　　　　[4=> what's
　　　　[5=> your
　　　　[6=> name
)
Array
(
　　　　[0] => Can
　　　　[1=> i
　　　　[2=> help
　　　　[3=> you
　　　　[4=> &
　　　　[5=> what's
　　　　[6=> your
　　　　[7=> name
)

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