Page 66 - Beginning PHP 5.3
P. 66
Part I: Getting Up and Running with PHP
Enhancing the Script Further
The “ Hello, world! ” example shows how you can write a simple PHP script, but the code does nothing
useful — you could just as easily achieve the same effect with a simple HTML page. In this section you
enhance the script to display the current time. In doing so, you move from creating a static Web page to a
dynamic page; a page that changes each time you view it.
Here ’ s the modified “ Hello, world! ” script:
<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Strict//EN”
“http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd”>
<html xmlns=”http://www.w3.org/1999/xhtml” xml:lang=”en” lang=”en”>
<head>
<title>Hello</title>
<link rel=”stylesheet” type=”text/css” href=”common.css” />
</head>
<body>
<h1>
<?php
$currentTime = date( “g:i:s a” );
echo “Hello, world! The current time is $currentTime”;
?>
</h1>
</body>
</html>
Save the script as hello_with_time.php and open its URL in your browser to run it. You ’ ll see
something along the lines of Figure 2-14 .
Figure 2-14
If, when running this script, you see a lengthy warning message telling you that it is not safe to rely on
the system’s time zone settings, you need to configure PHP ’ s time zone. See the “ Setting Your Time
Zone ” section earlier in the chapter for instructions.
28
9/21/09 8:50:26 AM
c02.indd 28 9/21/09 8:50:26 AM
c02.indd 28
