voku /
portable-utf8
| @@ 4922-4942 (lines=21) @@ | ||
| 4919 | * |
|
| 4920 | * @return string str with all alphabetic characters converted to lowercase. |
|
| 4921 | */ |
|
| 4922 | public static function strtolower($str, $encoding = 'UTF-8', $cleanUtf8 = false) |
|
| 4923 | { |
|
| 4924 | // init |
|
| 4925 | $str = (string)$str; |
|
| 4926 | ||
| 4927 | if (!isset($str[0])) { |
|
| 4928 | return ''; |
|
| 4929 | } |
|
| 4930 | ||
| 4931 | if ($cleanUtf8 === true) { |
|
| 4932 | // "\mb_strpos" and "\iconv_strpos" returns wrong position, |
|
| 4933 | // if invalid characters are found in $haystack before $needle |
|
| 4934 | $str = self::clean($str); |
|
| 4935 | } |
|
| 4936 | ||
| 4937 | if ($encoding !== 'UTF-8') { |
|
| 4938 | $encoding = self::normalize_encoding($encoding); |
|
| 4939 | } |
|
| 4940 | ||
| 4941 | return \mb_strtolower($str, $encoding); |
|
| 4942 | } |
|
| 4943 | ||
| 4944 | /** |
|
| 4945 | * Generic case sensitive transformation for collation matching. |
|
| @@ 4967-4986 (lines=20) @@ | ||
| 4964 | * |
|
| 4965 | * @return string str with all alphabetic characters converted to uppercase. |
|
| 4966 | */ |
|
| 4967 | public static function strtoupper($str, $encoding = 'UTF-8', $cleanUtf8 = false) |
|
| 4968 | { |
|
| 4969 | $str = (string)$str; |
|
| 4970 | ||
| 4971 | if (!isset($str[0])) { |
|
| 4972 | return ''; |
|
| 4973 | } |
|
| 4974 | ||
| 4975 | if ($cleanUtf8 === true) { |
|
| 4976 | // "\mb_strpos" and "\iconv_strpos" returns wrong position, |
|
| 4977 | // if invalid characters are found in $haystack before $needle |
|
| 4978 | $str = self::clean($str); |
|
| 4979 | } |
|
| 4980 | ||
| 4981 | if ($encoding !== 'UTF-8') { |
|
| 4982 | $encoding = self::normalize_encoding($encoding); |
|
| 4983 | } |
|
| 4984 | ||
| 4985 | return \mb_strtoupper($str, $encoding); |
|
| 4986 | } |
|
| 4987 | ||
| 4988 | /** |
|
| 4989 | * Translate characters or replace sub-strings. |
|
