Explain how PHP creates functions from strings

How to create a function from a string in php? This article mainly introduces the method of creating functions from strings in PHP, using strings and create_function function in PHP to create functions. I hope to be helpful.

The example in this article describes how PHP creates functions from strings. Share it with everyone for your reference. The details are as follows:

In php, you can put the entire function definition into a string and define it dynamically. With the create_function function, you can dynamically create functions based on user input. It is very convenient. The use of create_function is as follows: Shown:

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