| @@ 2427-2435 (lines=9) @@ | ||
| 2424 | * @return static |
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| 2425 | * <p>Object with all characters of $str being lowercase.</p> |
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| 2426 | */ |
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| 2427 | public function toLowerCase($tryToKeepStringLength = false, $lang = null): self |
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| 2428 | { |
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| 2429 | return static::create( |
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| 2430 | $this->utf8::strtolower( |
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| 2431 | $this->str, |
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| 2432 | $this->encoding, |
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| 2433 | false, |
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| 2434 | $lang, |
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| 2435 | $tryToKeepStringLength |
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| 2436 | ), |
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| 2437 | $this->encoding |
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| 2438 | ); |
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| @@ 2547-2553 (lines=7) @@ | ||
| 2544 | * @return static |
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| 2545 | * <p>Object with all characters of $str being uppercase.</p> |
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| 2546 | */ |
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| 2547 | public function toUpperCase($tryToKeepStringLength = false, $lang = null): self |
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| 2548 | { |
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| 2549 | return static::create( |
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| 2550 | $this->utf8::strtoupper($this->str, $this->encoding, false, $lang, $tryToKeepStringLength), |
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| 2551 | $this->encoding |
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| 2552 | ); |
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| 2553 | } |
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| 2554 | ||
| 2555 | /** |
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| 2556 | * Returns a string with whitespace removed from the start and end of the |
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