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<?php $paymentData = []; var_dump((int)$paymentData['subscription_number']++);
Output for 8.3.0 - 8.3.30, 8.4.1 - 8.4.17, 8.5.0 - 8.5.2
Warning: Undefined array key "subscription_number" in /in/2IrOv on line 5 int(0)
preferences:
49.19 ms | 406 KiB | 5 Q