74 lines
2.9 KiB
PHP
74 lines
2.9 KiB
PHP
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<?php
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// +----------------------------------------------------------------------+
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// | PHP Version 4 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997-2004 The PHP Group |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 3.0 of the PHP license, |
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// | that is bundled with this package in the file LICENSE, and is |
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// | available at through the world-wide-web at |
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// | http://www.php.net/license/3_0.txt. |
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// | If you did not receive a copy of the PHP license and are unable to |
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// | obtain it through the world-wide-web, please send a note to |
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// | license@php.net so we can mail you a copy immediately. |
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// +----------------------------------------------------------------------+
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// | Authors: Tom Buskens <ortega@php.net> |
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// | Aidan Lister <aidan@php.net> |
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// +----------------------------------------------------------------------+
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//
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// $Id: substr_compare.php,v 1.1 2005/07/23 05:56:03 Tony Exp $
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/**
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* Replace substr_compare()
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*
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* @category PHP
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* @package PHP_Compat
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* @link http://php.net/function.substr_compare
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* @author Tom Buskens <ortega@php.net>
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* @author Aidan Lister <aidan@php.net>
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* @version $Revision: 1.1 $
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* @since PHP 5
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* @require PHP 4.0.0 (user_error)
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*/
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if (!function_exists('substr_compare')) {
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function substr_compare($main_str, $str, $offset, $length = null, $case_insensitive = false)
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{
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if (!is_string($main_str)) {
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user_error('substr_compare() expects parameter 1 to be string, ' .
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gettype($main_str) . ' given', E_USER_WARNING);
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return;
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}
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if (!is_string($str)) {
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user_error('substr_compare() expects parameter 2 to be string, ' .
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gettype($str) . ' given', E_USER_WARNING);
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return;
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}
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if (!is_int($offset)) {
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user_error('substr_compare() expects parameter 3 to be long, ' .
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gettype($offset) . ' given', E_USER_WARNING);
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return;
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}
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if (is_null($length)) {
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$length = strlen($main_str) - $offset;
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} elseif ($offset >= strlen($main_str)) {
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user_error('substr_compare() The start position cannot exceed initial string length',
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E_USER_WARNING);
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return false;
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}
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$main_str = substr($main_str, $offset, $length);
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$str = substr($str, 0, strlen($main_str));
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if ($case_insensitive === false) {
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return strcmp($main_str, $str);
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} else {
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return strcasecmp($main_str, $str);
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}
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}
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}
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?>
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