How to call a function from a string stored in a variable?

To call a function from a string stored in a variable in PHP, you can use the call_user_func() function. Here is an example:

How to call a function from a string stored in a variable in PHP?

php— editable, runs on the server

In the example above, some_function is the name of the function stored in the string variable $function_name. The function_exists() function is used to check if the function exists before calling it, to avoid errors.

Alternatively, you can also use the call_user_func_array() function to call a function and pass an array of arguments to it. Here is an example:

Example of using the call_user_func_array() function to call a function and pass an array of arguments to it in PHP

php— editable, runs on the server

This would output:/p>

Hello, world!