| @@ 4415-4423 (lines=9) @@ | ||
| 4412 | * @return static |
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| 4413 | * <p>Object with all characters of $str being lowercase.</p> |
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| 4414 | */ |
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| 4415 | public function toLowerCase($tryToKeepStringLength = false, $lang = null): self |
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| 4416 | { |
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| 4417 | return static::create( |
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| 4418 | $this->utf8::strtolower( |
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| 4419 | $this->str, |
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| 4420 | $this->encoding, |
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| 4421 | false, |
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| 4422 | $lang, |
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| 4423 | $tryToKeepStringLength |
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| 4424 | ), |
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| 4425 | $this->encoding |
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| 4426 | ); |
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| @@ 4570-4576 (lines=7) @@ | ||
| 4567 | * @return static |
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| 4568 | * <p>Object with all characters of $str being uppercase.</p> |
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| 4569 | */ |
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| 4570 | public function toUpperCase($tryToKeepStringLength = false, $lang = null): self |
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| 4571 | { |
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| 4572 | return static::create( |
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| 4573 | $this->utf8::strtoupper($this->str, $this->encoding, false, $lang, $tryToKeepStringLength), |
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| 4574 | $this->encoding |
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| 4575 | ); |
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| 4576 | } |
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| 4577 | ||
| 4578 | /** |
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| 4579 | * Returns a string with whitespace removed from the start and end of the |
|