Functions play an important role in any programming languages. It allows you to organize your code in smaller part.
A function can be called repeatedly in your program and can return or not return any value.
There are more than 1,000 built-in functions in PHP and you can also create your own function.
Here’s the syntax of a user defined function:
your code or statement here;
When you name a function, make sure that it reflects the code that you write so you will know its purpose.
Let’s create a sample that will print the Hello World