| @@ 3400-3408 (lines=9) @@ | ||
| 3397 | * @return static |
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| 3398 | * <p>Object with all characters of $str being lowercase.</p> |
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| 3399 | */ |
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| 3400 | public function toLowerCase($tryToKeepStringLength = false, $lang = null): self |
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| 3401 | { |
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| 3402 | return static::create( |
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| 3403 | $this->utf8::strtolower( |
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| 3404 | $this->str, |
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| 3405 | $this->encoding, |
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| 3406 | false, |
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| 3407 | $lang, |
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| 3408 | $tryToKeepStringLength |
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| 3409 | ), |
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| 3410 | $this->encoding |
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| 3411 | ); |
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| @@ 3532-3538 (lines=7) @@ | ||
| 3529 | * @return static |
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| 3530 | * <p>Object with all characters of $str being uppercase.</p> |
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| 3531 | */ |
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| 3532 | public function toUpperCase($tryToKeepStringLength = false, $lang = null): self |
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| 3533 | { |
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| 3534 | return static::create( |
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| 3535 | $this->utf8::strtoupper($this->str, $this->encoding, false, $lang, $tryToKeepStringLength), |
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| 3536 | $this->encoding |
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| 3537 | ); |
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| 3538 | } |
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| 3539 | ||
| 3540 | /** |
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| 3541 | * Returns a string with whitespace removed from the start and end of the |
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