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/php/pear/PHP/Compat/Function/stripos.php

https://gitlab.com/trang1104/portable_project
PHP | 73 lines | 34 code | 9 blank | 30 comment | 9 complexity | 520b716b06db543e2bc968699d8b40db MD5 | raw file
 1<?php
 2// +----------------------------------------------------------------------+
 3// | PHP Version 4                                                        |
 4// +----------------------------------------------------------------------+
 5// | Copyright (c) 1997-2004 The PHP Group                                |
 6// +----------------------------------------------------------------------+
 7// | This source file is subject to version 3.0 of the PHP license,       |
 8// | that is bundled with this package in the file LICENSE, and is        |
 9// | available at through the world-wide-web at                           |
10// | http://www.php.net/license/3_0.txt.                                  |
11// | If you did not receive a copy of the PHP license and are unable to   |
12// | obtain it through the world-wide-web, please send a note to          |
13// | license@php.net so we can mail you a copy immediately.               |
14// +----------------------------------------------------------------------+
15// | Authors: Aidan Lister <aidan@php.net>                                |
16// +----------------------------------------------------------------------+
17//
18// $Id: stripos.php,v 1.13 2005/05/30 20:33:03 aidan Exp $
19
20
21/**
22 * Replace stripos()
23 *
24 * @category    PHP
25 * @package     PHP_Compat
26 * @link        http://php.net/function.stripos
27 * @author      Aidan Lister <aidan@php.net>
28 * @version     $Revision: 1.13 $
29 * @since       PHP 5
30 * @require     PHP 4.0.0 (user_error)
31 */
32if (!function_exists('stripos')) {
33    function stripos($haystack, $needle, $offset = null)
34    {
35        if (!is_scalar($haystack)) {
36            user_error('stripos() expects parameter 1 to be string, ' .
37                gettype($haystack) . ' given', E_USER_WARNING);
38            return false;
39        }
40
41        if (!is_scalar($needle)) {
42            user_error('stripos() needle is not a string or an integer.', E_USER_WARNING);
43            return false;
44        }
45
46        if (!is_int($offset) && !is_bool($offset) && !is_null($offset)) {
47            user_error('stripos() expects parameter 3 to be long, ' .
48                gettype($offset) . ' given', E_USER_WARNING);
49            return false;
50        }
51
52        // Manipulate the string if there is an offset
53        $fix = 0;
54        if (!is_null($offset)) {
55            if ($offset > 0) {
56                $haystack = substr($haystack, $offset, strlen($haystack) - $offset);
57                $fix = $offset;
58            }
59        }
60
61        $segments = explode(strtolower($needle), strtolower($haystack), 2);
62
63        // Check there was a match
64        if (count($segments) === 1) {
65            return false;
66        }
67
68        $position = strlen($segments[0]) + $fix;
69        return $position;
70    }
71}
72
73?>