The str_word_count() function is used to count the number of words in a string. This function was introduced in PHP4. The value of format dictates the returned value:
| value | returned value |
|---|---|
| 0 (default) | The number of words found in string |
| 1 | An array of all words found in string |
| 2 | An associative array, with keys being the positions and values being the words found at those positions in string |
Syntax:
str_word_count(string $string, int $format = 0, ?string $characters = null): array|int
The str_word_count() function returns the number of words in a string. You can pass a second parameter to str_word_count() to make it do other things, but if you only pass the string parameter by itself, then it returns the number of unique words that were found in the string.
Parameters
| Parameter | Description |
|---|---|
| string | The string |
| format | Specify the return value of this function. (0 or 1 or 2) |
| characters | A list of additional characters which will be considered as ‘word’ |
Return Values
Returns an array or an integer, depending on the format chosen.
Examples
Example 1:
<?php $text = “Good morning friends! have nice day”; $a=str_word_count($text,1); $b=str_word_count($text,2); $c=str_word_count($text); print_r($a); print_r($b); print $c; ?>
The output of the above program is as follows:
Array ( [0] => Good [1] => morning [2] => friends [3] => have [4] => nice [5] => day ) Array ( [0] => Good [5] => morning [13] => friends [22] => have [27] => nice [32] => day ) 6