PHP str_word_count()Functions

PHP String 参考手册PHP String Reference Manual

Examples

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

<?php
echo str_word_count("Hello world!");
?>

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Definition and Usage

The str_word_count() function counts the number of words in a string.

Syntax

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 keys are the positions of the words in the string, and the values are the actual words.
char Optional. Specifies special characters to be treated as words.

Technical Details

Return Value: Returns a number or an array, depending on the chosenreturnparameters.
PHP Version: 4.3.0+
Changelog: In PHP 5.1, thecharparameter was added.

More Examples

Example 1

Returns an array containing the words in the string:

<?php
print_r(str_word_count("Hello world!",1));
?>

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Example 2

Returns an array where the keys are the positions of the words in the string, and the values are the actual words:

<?php
print_r(str_word_count("Hello world!",2));
?>

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Example 3

Without the char parameter and with the char parameter:

<?php
print_r(str_word_count("Hello world & good morning!",1));
print_r(str_word_count("Hello world & good morning!",1,"&"));
?>

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