Online PHP editor | output for NZ1qX

<?php function getOptionOrElse(array $options, string $key, $else = false) { if (key_exists($key, $options) && $options[$key]['value'] !== '' && $options[$key]['value'] !== null) { return $options[$key]['value']; } return $else; } $abo_options = [ 'gedeelde bundel - belminuten per maand' => ['value' => 200], 'gedeelde bundel - sms per maand' => ['value' => 200], 'gedeelde bundel - mb per maand' => ['value' => 200] ]; //$minuten_sms_mb_amount = getOptionOrElse($abo_options,'gedeelde bundel - belminuten per maand', 0); //$minuten_sms_mb_amount += getOptionOrElse($abo_options,'gedeelde bundel - sms per maand', 0); //$minuten_sms_mb_amount += getOptionOrElse($abo_options,'gedeelde bundel - mb per maand', 0); $minuten_sms_mb_amount = getOptionOrElse($abo_options,'gedeelde bundel - belminuten per maand', 0); $minuten_sms_mb_amount += $minuten_sms_mb_amount === 0 ? getOptionOrElse($abo_options,'gedeelde bundel - sms per maand', 0) : 0; $minuten_sms_mb_amount += $minuten_sms_mb_amount === 0 ? getOptionOrElse($abo_options,'gedeelde bundel - mb per maand', 0) : 0; echo "amount: {$minuten_sms_mb_amount}";