Description
mixed
str_word_count ( string string [, int format])
Counts the number of words inside string.
If the optional format is not specified, then
the return value will be an integer representing the number of words
found. In the event the format is specified, the return
value will be an array, content of which is dependent on the
format. The possible value for the
format and the resultant outputs are listed below.
1 - returns an array containing all the words found inside the
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.
For the purpose of this function, 'word' is defined as a locale dependent
string containing alphabetic characters, which also may contain, but not start
with "'" and "-" characters.
例子 1. Example uses for str_word_count() |
<?php
$str = "Hello friend, you're
looking good today!";
$a = str_word_count($str, 1);
$b = str_word_count($str, 2);
$c = str_word_count($str);
print_r($a);
print_r($b);
echo $c;
?>
|
Output may look like:
Array
(
[0] => Hello
[1] => friend
[2] => you're
[3] => looking
[4] => good
[5] => today
)
Array
(
[0] => Hello
[6] => friend
[14] => you're
[29] => looking
[46] => good
[51] => today
)
6 |
|
See also explode(),
preg_split(),
split(),
count_chars(), and
substr_count().
str_split
