chillerlan /
php-qrcode
| @@ 271-282 (lines=12) @@ | ||
| 268 | * |
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| 269 | * @return bool |
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| 270 | */ |
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| 271 | public function isNumber(string $string):bool { |
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| 272 | $len = strlen($string); |
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| 273 | $map = str_split('0123456789'); |
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| 274 | ||
| 275 | for($i = 0; $i < $len; $i++){ |
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| 276 | if(!in_array($string[$i], $map, true)){ |
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| 277 | return false; |
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| 278 | } |
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| 279 | } |
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| 280 | ||
| 281 | return true; |
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| 282 | } |
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| 283 | ||
| 284 | /** |
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| 285 | * checks if a string qualifies as alphanumeric |
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| @@ 291-301 (lines=11) @@ | ||
| 288 | * |
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| 289 | * @return bool |
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| 290 | */ |
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| 291 | public function isAlphaNum(string $string):bool { |
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| 292 | $len = strlen($string); |
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| 293 | ||
| 294 | for($i = 0; $i < $len; $i++){ |
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| 295 | if(!in_array($string[$i], AlphaNum::CHAR_MAP, true)){ |
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| 296 | return false; |
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| 297 | } |
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| 298 | } |
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| 299 | ||
| 300 | return true; |
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| 301 | } |
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| 302 | ||
| 303 | /** |
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| 304 | * checks if a string qualifies as Kanji |
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