Episode 11: Creating a function

You can create a function by putting the code into a function block. The general format is as follows:

function functionname()

{

block of statements;

return;

}

For example, you can create the function display_logo() that we discuss in the preceding section with the following statements:

function display_logo()

{

echo “<p><img src=’Images/logo.jpg’ width=’50’ height=’50’

hspace=’10’ align=’left’ /></p>”;

echo “<p style=’font-size: x-large’>My Fine Company</p>”;

echo “<p style=’font-style: italic’>quality products</p>”;

return;

}

You can then call the function anywhere you want to display the logo, as  follows:

display_logo();

The return statement at the end of the preceding function stops the function and returns control to the main script. A return statement isn’t needed at the end of the function, because the function stops at the end anyway and returns control to the calling script.

Written by “Shojib”.