Iso/Iso3166Converter.php
public function convertAlpha2ToAlpha3($alpha2)
    {
        if (!isset(self::$codes[$alpha2])) {
            return null;
        }

        return self::$codes[$alpha2];
    }
public function convertAlpha2ToAlpha3($alpha2)
    {
        if (!isset(self::$codes[$alpha2])) {
            return null;
        }

        return self::$codes[$alpha2];
    }
public function convertAlpha2ToAlpha3 ( $ alpha2 ) { if ( ! isset ( self :: $ codes [ $ alpha2 ] ) ) { return null ; } return self :: $ codes [ $ alpha2 ] ; }
Gets the ISO3166 alpha-3 code that corresponds to the provided alpha-2 code.

@param string $alpha2
@return string|null
Gets the ISO3166 alpha - 3 code that corresponds to the provided alpha - 2 code .