You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
2.3 KiB
67 lines
2.3 KiB
<?php |
|
/** |
|
* @link http://www.yiiframework.com/ |
|
* @copyright Copyright (c) 2008 Yii Software LLC |
|
* @license http://www.yiiframework.com/license/ |
|
*/ |
|
|
|
namespace yii\helpers\base; |
|
|
|
/** |
|
* StringHelper |
|
* |
|
* @author Qiang Xue <qiang.xue@gmail.com> |
|
* @author Alex Makarov <sam@rmcreative.ru> |
|
* @since 2.0 |
|
*/ |
|
class StringHelper |
|
{ |
|
/** |
|
* Returns the number of bytes in the given string. |
|
* This method ensures the string is treated as a byte array by using `mb_strlen()`. |
|
* @param string $string the string being measured for length |
|
* @return integer the number of bytes in the given string. |
|
*/ |
|
public static function strlen($string) |
|
{ |
|
return mb_strlen($string, '8bit'); |
|
} |
|
|
|
/** |
|
* Returns the portion of string specified by the start and length parameters. |
|
* This method ensures the string is treated as a byte array by using `mb_substr()`. |
|
* @param string $string the input string. Must be one character or longer. |
|
* @param integer $start the starting position |
|
* @param integer $length the desired portion length |
|
* @return string the extracted part of string, or FALSE on failure or an empty string. |
|
* @see http://www.php.net/manual/en/function.substr.php |
|
*/ |
|
public static function substr($string, $start, $length) |
|
{ |
|
return mb_substr($string, $start, $length, '8bit'); |
|
} |
|
|
|
/** |
|
* Returns the trailing name component of a path. |
|
* This method does the same as the php function `basename()` except that it will |
|
* always use \ and / as directory separators, independent of the operating system. |
|
* This method was mainly created to work on php namespaces. When working with real |
|
* file paths, php's `basename()` should work fine for you. |
|
* Note: this method is not aware of the actual filesystem, or path components such as "..". |
|
* @param string $path A path string. |
|
* @param string $suffix If the name component ends in suffix this will also be cut off. |
|
* @return string the trailing name component of the given path. |
|
* @see http://www.php.net/manual/en/function.basename.php |
|
*/ |
|
public static function basename($path, $suffix = '') |
|
{ |
|
if (($len = mb_strlen($suffix)) > 0 && mb_substr($path, -$len) == $suffix) { |
|
$path = mb_substr($path, 0, -$len); |
|
} |
|
$path = rtrim(str_replace('\\', '/', $path), '/\\'); |
|
if (($pos = mb_strrpos($path, '/')) !== false) { |
|
return mb_substr($path, $pos + 1); |
|
} |
|
return $path; |
|
} |
|
}
|
|
|