| @@ 2288-2296 (lines=9) @@ | ||
| 2285 | * @return static |
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| 2286 | * <p>Object with all characters of $str being lowercase.</p> |
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| 2287 | */ |
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| 2288 | public function toLowerCase($tryToKeepStringLength = false, $lang = null): self |
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| 2289 | { |
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| 2290 | return static::create( |
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| 2291 | $this->utf8::strtolower( |
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| 2292 | $this->str, |
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| 2293 | $this->encoding, |
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| 2294 | false, |
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| 2295 | $lang, |
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| 2296 | $tryToKeepStringLength |
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| 2297 | ), |
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| 2298 | $this->encoding |
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| 2299 | ); |
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| @@ 2388-2394 (lines=7) @@ | ||
| 2385 | * @return static |
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| 2386 | * <p>Object with all characters of $str being uppercase.</p> |
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| 2387 | */ |
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| 2388 | public function toUpperCase($tryToKeepStringLength = false, $lang = null): self |
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| 2389 | { |
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| 2390 | return static::create( |
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| 2391 | $this->utf8::strtoupper($this->str, $this->encoding, false, $lang, $tryToKeepStringLength), |
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| 2392 | $this->encoding |
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| 2393 | ); |
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| 2394 | } |
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| 2395 | ||
| 2396 | /** |
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| 2397 | * Returns a string with whitespace removed from the start and end of the |
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