PHP: Declaring functions

This entry is part 30 of 54 in the series PHP Tutorial

Function names follow the same rules as variable names:

  • they must begin with a letter or an underscore, and
  • the rest of the characters in the name can be letters, numbers, or underscores.

The 2 functions below will generate the page header html and the page footer html.

<?php

function page_header()
{
    print '<html><head><title>Welcome to my site</title></head>';
    print "<body bgcolor='#ffffff'>";
}

page_header();
$user = 'Daryl';
print "Welcome, $user";
page_footer();

function page_footer()
{
    print '<hr>Thanks for visiting.';
    print '</body></html>';
}

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