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iconv() is more efficient than mb_convert_encoding()

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This commit is contained in:
Mark Baker 2013-03-16 00:18:38 +00:00
parent 316f86e03c
commit 80e3c46f3a
1 changed files with 14 additions and 14 deletions
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28
Classes/PHPExcel/Shared/String.php
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@ -482,7 +482,7 @@ class PHPExcel_Shared_String
} }
/** /**
* Convert string from one encoding to another. First try iconv, then mbstring, or no convertion * Convert string from one encoding to another. First try mbstring, then iconv, finally strlen
* *
* @param string $value * @param string $value
* @param string $to Encoding to convert to, e.g. 'UTF-8' * @param string $to Encoding to convert to, e.g. 'UTF-8'
@ -491,14 +491,14 @@ class PHPExcel_Shared_String
*/ */
public static function ConvertEncoding($value, $to, $from) public static function ConvertEncoding($value, $to, $from)
{ {
if (self::getIsIconvEnabled()) {
return iconv($from, $to, $value);
}
if (self::getIsMbstringEnabled()) { if (self::getIsMbstringEnabled()) {
return mb_convert_encoding($value, $to, $from); return mb_convert_encoding($value, $to, $from);
} }
if (self::getIsIconvEnabled()) {
return iconv($from, $to, $value);
}
if($from == 'UTF-16LE'){ if($from == 'UTF-16LE'){
return self::utf16_decode($value, false); return self::utf16_decode($value, false);
}else if($from == 'UTF-16BE'){ }else if($from == 'UTF-16BE'){
@ -548,20 +548,20 @@ class PHPExcel_Shared_String
*/ */
public static function CountCharacters($value, $enc = 'UTF-8') public static function CountCharacters($value, $enc = 'UTF-8')
{ {
if (self::getIsIconvEnabled()) {
return iconv_strlen($value, $enc);
}
if (self::getIsMbstringEnabled()) { if (self::getIsMbstringEnabled()) {
return mb_strlen($value, $enc); return mb_strlen($value, $enc);
} }
if (self::getIsIconvEnabled()) {
return iconv_strlen($value, $enc);
}
// else strlen // else strlen
return strlen($value); return strlen($value);
} }
/** /**
* Get a substring of a UTF-8 encoded string * Get a substring of a UTF-8 encoded string. First try mbstring, then iconv, finally strlen
* *
* @param string $pValue UTF-8 encoded string * @param string $pValue UTF-8 encoded string
* @param int $start Start offset * @param int $start Start offset
@ -570,14 +570,14 @@ class PHPExcel_Shared_String
*/ */
public static function Substring($pValue = '', $pStart = 0, $pLength = 0) public static function Substring($pValue = '', $pStart = 0, $pLength = 0)
{ {
if (self::getIsIconvEnabled()) {
return iconv_substr($pValue, $pStart, $pLength, 'UTF-8');
}
if (self::getIsMbstringEnabled()) { if (self::getIsMbstringEnabled()) {
return mb_substr($pValue, $pStart, $pLength, 'UTF-8'); return mb_substr($pValue, $pStart, $pLength, 'UTF-8');
} }
if (self::getIsIconvEnabled()) {
return iconv_substr($pValue, $pStart, $pLength, 'UTF-8');
}
// else substr // else substr
return substr($pValue, $pStart, $pLength); return substr($pValue, $pStart, $pLength);
} }