Online PHP editor | rfc for TglmD

@ 2014-12-11T15:34:04Z

<?php

function convert_uk_reg_year_to_yyyy($year)
{
    // Normalise year to padded with 1 leading zero, if necessary. This ensures that
    // if the input is int(9) instead of string(2) "09" then it will still work as
    // expected.
    $year = str_pad((int)$year, 2, 0, STR_PAD_LEFT);

    // Make sure input is within valid range
    if ($year < 0 || $year > 99) {
        return false;
    }

    // Create result
    return "20" . ($year[0] % 5) . $year[1];
}

// given examples
var_dump(convert_uk_reg_year_to_yyyy(55));
var_dump(convert_uk_reg_year_to_yyyy(03));
var_dump(convert_uk_reg_year_to_yyyy(62));

// future plates
var_dump(convert_uk_reg_year_to_yyyy(17)); // 2017
var_dump(convert_uk_reg_year_to_yyyy(22)); // 2022
var_dump(convert_uk_reg_year_to_yyyy(72)); // 2022

// invalid input
var_dump(convert_uk_reg_year_to_yyyy(101));
var_dump(convert_uk_reg_year_to_yyyy(-1));
var_dump(convert_uk_reg_year_to_yyyy(999));

Output for git.master, git.master_jit, rfc.property-hooks: string(4) "2005" string(4) "2003" string(4) "2012" string(4) "2017" string(4) "2022" string(4) "2022" bool(false) bool(false) bool(false)

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