If you have access to change the database, I wonder whether it would be better to store all the numbers sorted (either in the main table, or in a separate table), and then look them up that way. So if the user enters "312", you'd check for "123". Then you're only doing one lookup instead of 6.

In reply to Re^3: Getting combinations from a number's digits by Eimi Metamorphoumai
in thread Getting combinations from a number's digits by PerceptiveJohn

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