Validate saudi id Php Class

Algorithms: Validate Saudi ID
Abdul-Aziz Al-Oraij (contact me)
This class can be used to validate Saudi resident identifier numbers.

It takes a resident identifier number and calculates a checksum to verify whether it may be a valid number.

It returns either 1 (for Saudis), 2 (for non-Saudis) or FALSE (for invalid numbers).

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