1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
<?php
// +----------------------------------------------------------------------+
// | PHP Version 4 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2004 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject to version 3.0 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/3_0.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | license@php.net so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Authors: Aidan Lister <aidan@php.net> |
// +----------------------------------------------------------------------+
//
// $Id: str_word_count.php,v 1.9 2005/02/28 11:45:28 aidan Exp $
/**
* Replace str_word_count()
*
* @category PHP
* @package PHP_Compat
* @link http://php.net/function.str_word_count
* @author Aidan Lister <aidan@php.net>
* @version $Revision: 1.9 $
* @since PHP 4.3.0
* @require PHP 4.0.0 (user_error)
*/
if (!function_exists('str_word_count')) {
function str_word_count($string, $format = null)
{
if ($format !== 1 && $format !== 2 && $format !== null) {
user_error('str_word_count() The specified format parameter, "' . $format . '" is invalid',
E_USER_WARNING);
return false;
}
$word_string = preg_replace('/[0-9]+/', '', $string);
$word_array = preg_split('/[^A-Za-z0-9_\']+/', $word_string, -1, PREG_SPLIT_NO_EMPTY);
switch ($format) {
case null:
$result = count($word_array);
break;
case 1:
$result = $word_array;
break;
case 2:
$lastmatch = 0;
$word_assoc = array();
foreach ($word_array as $word) {
$word_assoc[$lastmatch = strpos($string, $word, $lastmatch)] = $word;
$lastmatch += strlen($word);
}
$result = $word_assoc;
break;
}
return $result;
}
}
?>
|