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<?php $paymentData = [ 'subscription_number' => '0', ]; var_dump((string)++$paymentData['subscription_number']);
Output for 8.3.0 - 8.3.30, 8.4.1 - 8.4.17, 8.5.0 - 8.5.2
string(1) "1"
preferences:
56.44 ms | 406 KiB | 5 Q