voku /
portable-utf8
| @@ 5805-5825 (lines=21) @@ | ||
| 5802 | * |
|
| 5803 | * @return string str with all alphabetic characters converted to lowercase. |
|
| 5804 | */ |
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| 5805 | public static function strtolower($str, $encoding = 'UTF-8', $cleanUtf8 = false) |
|
| 5806 | { |
|
| 5807 | // init |
|
| 5808 | $str = (string)$str; |
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| 5809 | ||
| 5810 | if (!isset($str[0])) { |
|
| 5811 | return ''; |
|
| 5812 | } |
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| 5813 | ||
| 5814 | if ($cleanUtf8 === true) { |
|
| 5815 | // "\mb_strpos" and "\iconv_strpos" returns wrong position, |
|
| 5816 | // if invalid characters are found in $haystack before $needle |
|
| 5817 | $str = self::clean($str); |
|
| 5818 | } |
|
| 5819 | ||
| 5820 | if ($encoding !== 'UTF-8') { |
|
| 5821 | $encoding = self::normalize_encoding($encoding, 'UTF-8'); |
|
| 5822 | } |
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| 5823 | ||
| 5824 | return \mb_strtolower($str, $encoding); |
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| 5825 | } |
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| 5826 | ||
| 5827 | /** |
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| 5828 | * Generic case sensitive transformation for collation matching. |
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| @@ 5851-5870 (lines=20) @@ | ||
| 5848 | * |
|
| 5849 | * @return string str with all alphabetic characters converted to uppercase. |
|
| 5850 | */ |
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| 5851 | public static function strtoupper($str, $encoding = 'UTF-8', $cleanUtf8 = false) |
|
| 5852 | { |
|
| 5853 | $str = (string)$str; |
|
| 5854 | ||
| 5855 | if (!isset($str[0])) { |
|
| 5856 | return ''; |
|
| 5857 | } |
|
| 5858 | ||
| 5859 | if ($cleanUtf8 === true) { |
|
| 5860 | // "\mb_strpos" and "\iconv_strpos" returns wrong position, |
|
| 5861 | // if invalid characters are found in $haystack before $needle |
|
| 5862 | $str = self::clean($str); |
|
| 5863 | } |
|
| 5864 | ||
| 5865 | if ($encoding !== 'UTF-8') { |
|
| 5866 | $encoding = self::normalize_encoding($encoding, 'UTF-8'); |
|
| 5867 | } |
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| 5868 | ||
| 5869 | return \mb_strtoupper($str, $encoding); |
|
| 5870 | } |
|
| 5871 | ||
| 5872 | /** |
|
| 5873 | * Translate characters or replace sub-strings. |
|
