Validate_FI::carLicensePlate() – Validate Finnish car license plate number


require_once 'Validate/FI.php';

bool Validate_FI::carLicensePlate ( string $number )


Validate Finnish car license plate number. Format: AAA-XXX, CD-XXXX or C-XXXXX. First or only number cannot be zero.

AAA-XXX: AAA is 2-3 letters UPPERCASE A-Z + ÅÄÖ and XXX is 1-3 numbers.

CD-XXXX: CD- and XXXX is 1-4 numbers (diplomat licence plate).

C-XXXXX: C- and XXXXX is 1-5 numbers (other tax-free diplomat licence plate).


string $number

The license plate number to be validated

Return value

boolean - true if license plate number is valid, false otherwise


Using carLicensePlate()

// Include the package
require_once 'Validate/FI.php';

$carLicensePlate 'ABC-123';
if ( 
Validate_FI::carLicensePlate($carLicensePlate) ) {
} else {
'Not valid!';
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Last updated: Sat, 16 Feb 2019 — Download Documentation
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