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Defining functions

 

In PHP, you can define functions to encapsulate reusable blocks of code. Here's the basic syntax for defining a function:

 

function functionName($parameter1, $parameter2, ...) {
    // Code to be executed
    return $result; // Optional: Return a value
}

 

 

  • functionName: The name of the function.
  • $parameter1, $parameter2, ...: Optional parameters that the function accepts.
  • return: Optional keyword to return a value from the function.

Here's an example of a simple function that adds two numbers:

  • functionName: The name of the function.
  • $parameter1, $parameter2, ...: Optional parameters that the function accepts.
  • return: Optional keyword to return a value from the function.

Here's an example of a simple function that adds two numbers:

function add($num1, $num2) {
    $sum = $num1 + $num2;
    return $sum;
}