chillerlan /
php-qrcode
| @@ 265-276 (lines=12) @@ | ||
| 262 | * |
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| 263 | * @return bool |
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| 264 | */ |
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| 265 | public function isNumber(string $string):bool { |
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| 266 | $len = strlen($string); |
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| 267 | $map = str_split('0123456789'); |
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| 268 | ||
| 269 | for($i = 0; $i < $len; $i++){ |
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| 270 | if(!in_array($string[$i], $map, true)){ |
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| 271 | return false; |
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| 272 | } |
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| 273 | } |
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| 274 | ||
| 275 | return true; |
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| 276 | } |
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| 277 | ||
| 278 | /** |
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| 279 | * checks of a string qualifies as alphanumeric |
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| @@ 285-295 (lines=11) @@ | ||
| 282 | * |
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| 283 | * @return bool |
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| 284 | */ |
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| 285 | public function isAlphaNum(string $string):bool { |
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| 286 | $len = strlen($string); |
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| 287 | ||
| 288 | for($i = 0; $i < $len; $i++){ |
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| 289 | if(!in_array($string[$i], AlphaNum::CHAR_MAP, true)){ |
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| 290 | return false; |
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| 291 | } |
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| 292 | } |
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| 293 | ||
| 294 | return true; |
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| 295 | } |
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| 296 | ||
| 297 | /** |
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| 298 | * checks of a string qualifies as Kanji |
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