| @@ 3547-3555 (lines=9) @@ | ||
| 3544 | * @return static |
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| 3545 | * <p>Object with all characters of $str being lowercase.</p> |
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| 3546 | */ |
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| 3547 | public function toLowerCase($tryToKeepStringLength = false, $lang = null): self |
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| 3548 | { |
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| 3549 | return static::create( |
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| 3550 | $this->utf8::strtolower( |
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| 3551 | $this->str, |
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| 3552 | $this->encoding, |
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| 3553 | false, |
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| 3554 | $lang, |
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| 3555 | $tryToKeepStringLength |
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| 3556 | ), |
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| 3557 | $this->encoding |
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| 3558 | ); |
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| @@ 3679-3685 (lines=7) @@ | ||
| 3676 | * @return static |
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| 3677 | * <p>Object with all characters of $str being uppercase.</p> |
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| 3678 | */ |
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| 3679 | public function toUpperCase($tryToKeepStringLength = false, $lang = null): self |
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| 3680 | { |
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| 3681 | return static::create( |
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| 3682 | $this->utf8::strtoupper($this->str, $this->encoding, false, $lang, $tryToKeepStringLength), |
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| 3683 | $this->encoding |
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| 3684 | ); |
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| 3685 | } |
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| 3686 | ||
| 3687 | /** |
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| 3688 | * Returns a string with whitespace removed from the start and end of the |
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