• Introduction to PHP Functions. A function is a block of code that performs a specific task. It is like a subprogram that can be called from the main program.
  • function func_name(...$variadicParameters) { code_to_run(); } // PHP 5.6+. ... function func_name() : return_type { code_To_run(); } // PHP 7.0+.
  • The function outputs "Hello world!". PHP Function Arguments. Information can be passed to functions through arguments. An argument is just like a variable.
  • PHP is a popular general-purpose scripting language that powers everything from your blog to the most popular websites in the world.
  • A: Functions in PHP are defined using the function keyword, followed by the name of the function and a set of parentheses ().
  • The concept of the function is the same as in other languages like C. There are more than 1,000 inbuilt functions into the standard PHP distribution.
  • PHP does not limit the number of parameters separated by a comma, but a function should only execute a single action.
  • Defining a function in PHP is easy. You simply use the function keyword, followed by the name of the function and a set of parentheses.
  • User Defined Functions in PHP
    • In PHP, functions can be written on their own in addition to the built-in PHP functions.
    • A function is a set of statements that can be used repeatedly in a program.
  • Declaring and calling functions in PHP involves defining the function using the function keyword, specifying any parameters it may accept...