Web Reference: PHP supports the concept of variable functions. This means that if a variable name has parentheses appended to it, PHP will look for a function with the same name as whatever the variable evaluates to, and will attempt to execute it. PHP has over 1000 built-in functions that can be called directly, from within a script, to perform a specific task. Please check out our PHP reference for a complete overview. PHP Variable Functions Summary: In this tutorial, you will learn about PHP variable functions and how to use them to call a function, an object’s method, and a class’s static method.
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