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Php generates 12-digit non-repeated alphanumeric member card numbers

Source: Internet
Author: User
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Php generates 12-digit, unique-digit, and alphanumeric member card numbers without querying the database. when each member logs in, a unique membership card number is generated. Share To: php generates 12 non-repeated numbers, letters, and combination membership card numbers
When you log in without querying the database, each member will generate a membership card number with no duplicate combinations of numbers and letters. Share: More

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