voku /
portable-utf8
| @@ 5704-5724 (lines=21) @@ | ||
| 5701 | * |
|
| 5702 | * @return string str with all alphabetic characters converted to lowercase. |
|
| 5703 | */ |
|
| 5704 | public static function strtolower($str, $encoding = 'UTF-8', $cleanUtf8 = false) |
|
| 5705 | { |
|
| 5706 | // init |
|
| 5707 | $str = (string)$str; |
|
| 5708 | ||
| 5709 | if (!isset($str[0])) { |
|
| 5710 | return ''; |
|
| 5711 | } |
|
| 5712 | ||
| 5713 | if ($cleanUtf8 === true) { |
|
| 5714 | // "\mb_strpos" and "\iconv_strpos" returns wrong position, |
|
| 5715 | // if invalid characters are found in $haystack before $needle |
|
| 5716 | $str = self::clean($str); |
|
| 5717 | } |
|
| 5718 | ||
| 5719 | if ($encoding !== 'UTF-8') { |
|
| 5720 | $encoding = self::normalize_encoding($encoding); |
|
| 5721 | } |
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| 5722 | ||
| 5723 | return \mb_strtolower($str, $encoding); |
|
| 5724 | } |
|
| 5725 | ||
| 5726 | /** |
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| 5727 | * Generic case sensitive transformation for collation matching. |
|
| @@ 5750-5769 (lines=20) @@ | ||
| 5747 | * |
|
| 5748 | * @return string str with all alphabetic characters converted to uppercase. |
|
| 5749 | */ |
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| 5750 | public static function strtoupper($str, $encoding = 'UTF-8', $cleanUtf8 = false) |
|
| 5751 | { |
|
| 5752 | $str = (string)$str; |
|
| 5753 | ||
| 5754 | if (!isset($str[0])) { |
|
| 5755 | return ''; |
|
| 5756 | } |
|
| 5757 | ||
| 5758 | if ($cleanUtf8 === true) { |
|
| 5759 | // "\mb_strpos" and "\iconv_strpos" returns wrong position, |
|
| 5760 | // if invalid characters are found in $haystack before $needle |
|
| 5761 | $str = self::clean($str); |
|
| 5762 | } |
|
| 5763 | ||
| 5764 | if ($encoding !== 'UTF-8') { |
|
| 5765 | $encoding = self::normalize_encoding($encoding); |
|
| 5766 | } |
|
| 5767 | ||
| 5768 | return \mb_strtoupper($str, $encoding); |
|
| 5769 | } |
|
| 5770 | ||
| 5771 | /** |
|
| 5772 | * Translate characters or replace sub-strings. |
|
