give me an example. To implement a telephone charging system for top-up cards and secret recharge phone numbers, for example, there are 1 million phone charge cards and 1 million phone numbers in my table, and each phone number corresponds to a top-up card to recharge an order, then I want to implement the system to process these phone charges, and each order takes 2 seconds, if the system processes the order one by one, it does not have to wait for 2 million seconds. 2 million seconds is about 23 days. It takes so long to recharge such a small order, so more orders will take longer. So I think of the multithreading of java. If I open 100 threads, I can process 100 orders in parallel at a time, which is more efficient. Then I want to ask whether php can meet the requirement of multi-task parallel processing such as java multithreading. If possible, which is more advantageous and efficient for multitasking between PHP and java? Hope java Daniel and php Daniel answer