What is the maximum number of MySQL connections?

What I mean is a connection?
A process connection Mysql,mysql assign a process to the request to connect to PHP, is this even a connection?
For example, the maximum number of MySQL connections is 50, does it mean that the MySQL restaurant has 50 waiters, right?
If the use of persistent connection, it means that the waiter only to a specific customer (PHP process) services, the other customers can not use the waiter, right???

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What I mean is a connection?
A process connection Mysql,mysql assign a process to the request to connect to PHP, is this even a connection?
For example, the maximum number of MySQL connections is 50, does it mean that the MySQL restaurant has 50 waiters, right?
If the use of persistent connection, it means that the waiter only to a specific customer (PHP process) services, the other customers can not use the waiter, right???

You understand the right.

However, the general PHP initial concurrency is not high when it is better to take a connection to complete the disconnection, because the database generally support the concurrent connections are very low, hundred levels. You said long links are typically used for connection pooling technology, which is used by the application code to maintain SQL queues to thoroughly crush database performance.

MySQL is your restaurant with a total of 50 seats, one less per use. If you have 50 seats full of people. But the guests can still come into your restaurant. But there is no place to eat. Too few meals (too few connections). Increase the number of connections is to increase the dining place

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