Solving the ‘Return the Next Number’ PHP Programming Problem

Writing a Function That Increments an Integer by 1

2 min readJun 14, 2023

In this article, we’ll provide a step-by-step guide on how to write a function that takes a number as an argument, increments the number by 1, and returns the result.

Step 1: Define the Function

To start, we need to define the function. In PHP, a function is a block of code that performs a specific task. We’ll name our function addition and specify that it takes one integer argument:

function addition($num) {
  // code goes here
}

Step 2: Increment the Integer

Next, we need to increment the integer by 1. We can do this using the ++ operator:

function addition($num) {
  $num++;
  return $num;
}

Step 3: Return Result

Finally, we need to return the result. In PHP, we use the return keyword to return a value from a function:

function addition($num) {
  $num++;
  return $num;
}

Step 4: Test the Function

Now that we’ve written our function, let’s test it out! We can call our function and pass in an integer to see if it…