Page 521 - Beginning PHP 5.3
P. 521
Chapter 16: PHP and the Outside World
Figure 16-1
Try It Out Calculate Your Age in Days
You can use your newfound knowledge of PHP’s date handling functions to write a script that
calculates the user’s age in days. The script presents a form asking the user to input his or her date of
birth, then calculates the difference (in days) between this date and the current date.
Save the following script as days_old.php in your document root folder. Because the script uses the
HTML_QuickForm and HTML_QuickForm_Renderer_Tableless PEAR packages, make sure you
install these as well. You can find detailed information on installing these packages in the previous
chapter.
<!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>How many days old are you?</title>
<link rel=”stylesheet” type=”text/css” href=”common.css” />
<style type=”text/css”>
.error { background: #d33; color: white; padding: 0.2em; margin:
0.2em 0 0.2em 0; font-size: 0.9em; }
fieldset { border: none; }
ol {list-style-type: none; }
input, select, textarea { float: none; margin: 1em 0 0 0; width:
auto; }
div.element { float: right; width: 57%; }
div.element label { display: inline; float: none; }
select { margin-right: 0.5em; }
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