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<?php testCode('IZM_0126_B'); function testCode($code) { echo preg_match('/(*UTF8)^(([A-ZĀČĒĢĪĶĻŅŠŪŽ\/]{2,12})_(0[1-9]|1[012])(0[1-9]|[12][0-9]|3[01])_([A-D]([1-9])?))$/', $code); }

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