How functions are defined in PHP?

A function is a part of program which contains set of statements that can perform a desired task. A function can be defined with the function keyword followed by the function name and an optional set of parameters enclosed in parentheses. A function definition may not occur before a function call. It can be anywhere in the script. Although function definitions can be nested, it is not encouraged as they can make the script complex. Syntax for defining a function is given below: 1 2 3 4 5 function  function_name() {     //Body of the function      } The

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How functions are defined in PHP?
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