voku /
portable-utf8
| @@ 5500-5520 (lines=21) @@ | ||
| 5497 | * |
|
| 5498 | * @return string str with all alphabetic characters converted to lowercase. |
|
| 5499 | */ |
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| 5500 | public static function strtolower($str, $encoding = 'UTF-8', $cleanUtf8 = false) |
|
| 5501 | { |
|
| 5502 | // init |
|
| 5503 | $str = (string)$str; |
|
| 5504 | ||
| 5505 | if (!isset($str[0])) { |
|
| 5506 | return ''; |
|
| 5507 | } |
|
| 5508 | ||
| 5509 | if ($cleanUtf8 === true) { |
|
| 5510 | // "\mb_strpos" and "\iconv_strpos" returns wrong position, |
|
| 5511 | // if invalid characters are found in $haystack before $needle |
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| 5512 | $str = self::clean($str); |
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| 5513 | } |
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| 5514 | ||
| 5515 | if ($encoding !== 'UTF-8') { |
|
| 5516 | $encoding = self::normalize_encoding($encoding); |
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| 5517 | } |
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| 5518 | ||
| 5519 | return \mb_strtolower($str, $encoding); |
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| 5520 | } |
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| 5521 | ||
| 5522 | /** |
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| 5523 | * Generic case sensitive transformation for collation matching. |
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| @@ 5546-5565 (lines=20) @@ | ||
| 5543 | * |
|
| 5544 | * @return string str with all alphabetic characters converted to uppercase. |
|
| 5545 | */ |
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| 5546 | public static function strtoupper($str, $encoding = 'UTF-8', $cleanUtf8 = false) |
|
| 5547 | { |
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| 5548 | $str = (string)$str; |
|
| 5549 | ||
| 5550 | if (!isset($str[0])) { |
|
| 5551 | return ''; |
|
| 5552 | } |
|
| 5553 | ||
| 5554 | if ($cleanUtf8 === true) { |
|
| 5555 | // "\mb_strpos" and "\iconv_strpos" returns wrong position, |
|
| 5556 | // if invalid characters are found in $haystack before $needle |
|
| 5557 | $str = self::clean($str); |
|
| 5558 | } |
|
| 5559 | ||
| 5560 | if ($encoding !== 'UTF-8') { |
|
| 5561 | $encoding = self::normalize_encoding($encoding); |
|
| 5562 | } |
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| 5563 | ||
| 5564 | return \mb_strtoupper($str, $encoding); |
|
| 5565 | } |
|
| 5566 | ||
| 5567 | /** |
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| 5568 | * Translate characters or replace sub-strings. |
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