Malaysian IC Number (MyKad / NRIC) Regex for PHP

What this pattern does

This page provides a well-structured, multi-part regular expression for matching malaysian ic number (mykad / nric), ported and verified for PHP. Identity and credential patterns need both correctness and safety, since they're frequent targets for adversarial input. The snippet below is ready to drop into your PHP project — whether you're validating in a Laravel validator, a WordPress plugin, or a standalone PHP script.

Php Implementation

<?php
// Malaysian IC Number (MyKad / NRIC)
// ReDoS-safe | RegexVault — Identity & PII > National Identity Numbers

define('MALAYSIAN_IC_NUMBER_MYKAD_NRIC_PATTERN', '/^(\d{2})(0[1-9]|1[0-2])(0[1-9]|[12]\d|3[01])-(0[0-9]|1[0-6])-(\d{4})$/');

function validate_malaysian_ic_number_mykad_nric(string $input): bool {
    return (bool) preg_match(MALAYSIAN_IC_NUMBER_MYKAD_NRIC_PATTERN, $input);
}

// Example
var_dump(validate_malaysian_ic_number_mykad_nric("880101-14-5555")); // bool(true)

Test Cases

When to use this pattern

This pattern is drawn from the Identity & PII > National Identity Numbers category and carries a ReDoS-safe certification. That matters for PHP developers because especially relevant in PHP where PCRE backtracking limits can trigger silent failures on malicious input. RegexVault audits patterns against known backtracking attack vectors, ensuring you have the necessary context before using this regex in a high-stakes production environment.

Common Pitfalls

Technical Notes

Structure: YYMMDD (date of birth) + state code (01-16) + sequential number. Last digit odd=male, even=female. State codes: 01=Johor, 02=Kedah, ..., 14=Federal Territory, 15=Sabah, 16=Sarawak. YYMMDD does not validate day-of-month correctness (e.g., 990231 is Feb 31).