• 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.
  • 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.
  • 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.
  • So far, you have learned how to use built-in functions in PHP, such as var_dump() that dumps information about a variable.
  • 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.
  • If we do not pass any argument for a parameter with default value then PHP will use the default set value for this parameter in the function call.