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Refactored StringHelper.

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This commit is contained in:
Qiang Xue
2013-05-27 21:35:00 -04:00
parent 9445953b29
commit df6168475e
1 changed files with 5 additions and 8 deletions
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13
framework/yii/helpers/base/StringHelper.php
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@@ -18,20 +18,18 @@ class StringHelper
{
/**
* Returns the number of bytes in the given string.
* This method ensures the string is treated as a byte array.
* It will use `mb_strlen()` if it is available.
* 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 function_exists('mb_strlen') ? mb_strlen($string, '8bit') : strlen($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.
* It will use `mb_substr()` if it is available.
* 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 $length the desired portion length
@@ -40,15 +38,14 @@ class StringHelper
*/
public static function substr($string, $start, $length)
{
return function_exists('mb_substr') ? mb_substr($string, $start, $length, '8bit') : substr($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.
* Note: basename() operates naively on the input string, and is not aware of the
* actual filesystem, or path components such as "..".
* 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.