Saudi ID Validator

Saudi ID Validator validates Saudi National ID and Iqama (residency) numbers entirely offline — no external service is called. It checks the length and shape, distinguishes a citizen ID from an Iqama by its leading digit, and verifies the official Luhn checksum.

Features

• Offline validation of Saudi National ID and Iqama numbers (format, type and checksum).
• A reusable, dependency-injected validation service for your own code.
• A Form API #element_validate callback for form fields.
• An entity/typed-data constraint (SaudiId) so stored values are validated wherever they are written.
• Type detection: citizen vs. resident.

Post-Installation

Enable the module and use the saudi_id_validator.validator service, the Form API element validator, or the SaudiId constraint on a field. No configuration is required.

Additional Requirements

Drupal core only, no contributed dependencies and no network access. PHP 8.3 or newer. Compatible with Drupal 10.3+ and Drupal 11.