wilamowski-b-m-irwin-j-d-industrial-communication-systems-2011

62-6 Industrial Communication Systems
Example:
Output: 1 2 3 4 5
62.3.4 Functions
Functions contain scripts that are called to execute whenever a page loads or is called from anywhere within
a page. There are around 700 built-in functions available in PHP such as date function, string function, calendar
function, array functions, etc. You can create your own function to achieve a specific goal.
Syntax:
function functionName(){
code to be executed;
}
Example 1: Without parameters
Output: function code is executed and displayed
Example 2: Parameters and return values
Parameters are declared inside the parenthesis. Parameters are just like variables that store information
within the function.
Output: Sum is 6
62.3.5 Include Function
If you want to include one PHP file in another PHP file, include() or require() functions is used to take
the content of one file and include it in the current file.
© 2011 by Taylor and Francis Group, LLC