Card Number Validation in PHP in Chars Play Hole
2nd in PHP and 168th overall.
Last tested .
| Bytes | Chars | Submitted |
|---|---|---|
| 81 | 81 | |
| 83 | 83 | |
| 84 | 84 | |
| 86 | 86 | |
| 89 | 89 | |
| 91 | 91 | |
| 93 | 93 |
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