Industrial Communication Systems

62-6 Industrial Communication Systems

Example:

<?php

for ($i=1; $i<=5; $i++) {

echo $i;

}

?>

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. ere are around 700 built-in functions available in PHP such as date function, string function, cal-

endar function, array functions, etc. You can create your own function to achieve a specic goal.

Syntax:

function functionName(){

code to be executed;

}

Example

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<?php

function demo() {

//user defined function

$string1="Function string";

echo "function code is executed and displayed";

}

demo();

//calling a function, by using function name

?>

Output: function code is executed and displayed ...