w3resource

PHP: str_word_count() function

Description

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

Version:

(PHP 4 and above)

Syntax:

str_word_count(string_name, nformat, add_chars)

Parameter:

Name Description Required /
Optional		 Type
string_name The input string. Required String
nformat Specifies the return value of the str_word_count() function.
Supported values :
0 - returns the number of words found.
1 - returns an array contains all the words found within the specified 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.		 Optional Integer
add_chars A list of additional characters which will be considered as 'word'. Optional String

Return value:

An array or an integer, depending on the format chosen.

Value Type: Mixed.

*Mixed: Mixed indicates that a parameter may accept multiple (but not necessarily all) types.

Pictorial Presentation

php-string-str_word_count()

Example: 

<?php
$string_name='Welcome to w3resource.com';
print_r(str_word_count($string_name,0));
echo '<br>';
print_r(str_word_count($string_name,1));
echo '<br>';
print_r(str_word_count($string_name,2));
?>

Output :

5

Array  (      [0] => Welcome      [1] => to      [2] => w      [3] => resource      [4] => com  ) 

Array  (      [0] => Welcome      [8] => to      [11] => w      [13] => resource      [22] => com  )

View the example in the browser

See also

PHP Function Reference

Previous: str_split
Next: strcasecmp



PHP: Tips of the Day

PHP: Using str_replace so that it only acts on the first match?

Can be done with preg_replace: 

function str_replace_first($from, $to, $content)
{
    $from = '/'.preg_quote($from, '/').'/';

    return preg_replace($from, $to, $content, 1);
}

echo str_replace_first('abc', '123', 'abcdef abcdef abcdef'); 
// outputs '123def abcdef abcdef'

The magic is in the optional fourth parameter [Limit]. From the documentation:

[Limit] - The maximum possible replacements for each pattern in each subject string. Defaults to -1 (no limit).

Ref : https://bit.ly/35SCuP8