| @@ 2260-2268 (lines=9) @@ | ||
| 2257 | * @return static |
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| 2258 | * <p>Object with all characters of $str being lowercase.</p> |
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| 2259 | */ |
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| 2260 | public function toLowerCase($tryToKeepStringLength = false, $lang = null): self |
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| 2261 | { |
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| 2262 | return static::create( |
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| 2263 | $this->utf8::strtolower( |
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| 2264 | $this->str, |
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| 2265 | $this->encoding, |
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| 2266 | false, |
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| 2267 | $lang, |
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| 2268 | $tryToKeepStringLength |
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| 2269 | ), |
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| 2270 | $this->encoding |
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| 2271 | ); |
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| @@ 2360-2366 (lines=7) @@ | ||
| 2357 | * @return static |
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| 2358 | * <p>Object with all characters of $str being uppercase.</p> |
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| 2359 | */ |
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| 2360 | public function toUpperCase($tryToKeepStringLength = false, $lang = null): self |
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| 2361 | { |
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| 2362 | return static::create( |
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| 2363 | $this->utf8::strtoupper($this->str, $this->encoding, false, $lang, $tryToKeepStringLength), |
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| 2364 | $this->encoding |
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| 2365 | ); |
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| 2366 | } |
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| 2367 | ||
| 2368 | /** |
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| 2369 | * Returns a string with whitespace removed from the start and end of the |
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