| @@ 3185-3193 (lines=9) @@ | ||
| 3182 | * @return static |
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| 3183 | * <p>Object with all characters of $str being lowercase.</p> |
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| 3184 | */ |
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| 3185 | public function toLowerCase($tryToKeepStringLength = false, $lang = null): self |
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| 3186 | { |
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| 3187 | return static::create( |
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| 3188 | $this->utf8::strtolower( |
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| 3189 | $this->str, |
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| 3190 | $this->encoding, |
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| 3191 | false, |
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| 3192 | $lang, |
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| 3193 | $tryToKeepStringLength |
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| 3194 | ), |
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| 3195 | $this->encoding |
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| 3196 | ); |
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| @@ 3317-3323 (lines=7) @@ | ||
| 3314 | * @return static |
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| 3315 | * <p>Object with all characters of $str being uppercase.</p> |
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| 3316 | */ |
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| 3317 | public function toUpperCase($tryToKeepStringLength = false, $lang = null): self |
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| 3318 | { |
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| 3319 | return static::create( |
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| 3320 | $this->utf8::strtoupper($this->str, $this->encoding, false, $lang, $tryToKeepStringLength), |
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| 3321 | $this->encoding |
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| 3322 | ); |
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| 3323 | } |
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| 3324 | ||
| 3325 | /** |
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| 3326 | * Returns a string with whitespace removed from the start and end of the |
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