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<?php $default = array('GBP','USD'); $currencies = array('EUR'); if ( ! is_array($currencies) ) $currencies = array($currencies); $c = array_merge($currencies, $default); var_dump(array_unique($c));
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(3) { [0]=> string(3) "EUR" [1]=> string(3) "GBP" [2]=> string(3) "USD" }
preferences:
254.67 ms | 405 KiB | 369 Q