Online PHP editor | output for EvvQu

<?php $country_codes = array('UK','IRL'); $country_list = array( 'ALB' => 'Albania', 'AND' => 'Andorra', 'ARM' => 'Armenia', 'AUT' => 'Austria', 'AZE' => 'Azerbaijan', 'BLR' => 'Belarus', 'BEL' => 'Belgium', 'BIH' => 'Bosnia and Herzegovina', 'BGR' => 'Bulgaria', 'HRV' => 'Croatia', 'CYP' => 'Cyprus', 'CZE' => 'Czech Republic', 'DNK' => 'Denmark', 'EST' => 'Estonia', 'FIN' => 'Finland', 'FRA' => 'France', 'GEO' => 'Georgia', 'DEU' => 'Germany', 'GRC' => 'Greece', 'HUN' => 'Hungary', 'ISL' => 'Iceland', 'IRL' => 'Ireland', 'ITA' => 'Italy', 'KAZ' => 'Kazakhstan', 'RKS' => 'Kosovo', 'LVA' => 'Latvia', 'LIE' => 'Liechtenstein', 'LTU' => 'Lithuania', 'LUX' => 'Luxembourg', 'MLT' => 'Malta', 'MDA' => 'Moldova', 'MCO' => 'Monaco', 'MNE' => 'Montenegro', 'NLD' => 'Netherlands', 'MKD' => 'North Macedonia', 'NOR' => 'Norway', 'POL' => 'Poland', 'PRT' => 'Portugal', 'ROU' => 'Romania', 'RUS' => 'Russia', 'SMR' => 'San Marino', 'SRB' => 'Serbia', 'SVK' => 'Slovakia', 'SVN' => 'Slovenia', 'ESP' => 'Spain', 'SWE' => 'Sweden', 'CHE' => 'Switzerland', 'TUR' => 'Turkey', 'UKR' => 'Ukraine', 'UK' => 'UK', ); $filtered_countries = array_intersect_key($country_list, array_flip($country_codes)); print_r($filtered_countries);