CSci 1101: First php examples

CSci 1101: First php examples.

The very first php example


<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<!-- 
The very first php example
Author: Elena Machkasova elenam@morris.umn.edu 
Last modified: 2/13/08
--> 

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<title>
<?php print "First PHP example\n";?>
</title>
</head>
<body>
<h1>

<?php print "First PHP example\n";?>
</h1>

<p>Today we start learning PHP. </p>
</body>
</html>

http://csci1101sp10.morris.umn.edu/~elenam/1101_spring10/first/first.php

A simple php example with a variable


<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<!-- 
A simple php example with a variable
Author: Elena Machkasova elenam@morris.umn.edu 
Last modified: 2/6/07 
-->
<?php 
$pagename = "Second PHP example\n"; 
?> 
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />

<title>
<?php print $pagename;?>
</title>
</head>
<body>

<h1>
<?php print $pagename;?>
</h1>

<p>Today we start learning PHP. </p>
</body>
</html>

http://csci1101sp10.morris.umn.edu/~elenam/1101_spring10/first/second.php

A php example with several variables


<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<!-- 
A php example with several variables
Author: Elena Machkasova elenam@morris.umn.edu 
Last modified: 2/6/07 
-->
<?php 
$pagename = "Another PHP example";
$username = "Mary";
$the_color = "#00FF00";
?> 
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<title>

<?php print $pagename?>
</title>

</head>
<body>
<h1>
<?php print $pagename;?>
</h1>
<p>
<? print $username?>, welcome to this page! 

</p>
<p style="font-weight: bold; color: <? print $the_color?>">

Isn't it really cool?
</p>
</body>
</html>

http://csci1101sp10.morris.umn.edu/~elenam/1101_spring10/first/third.php

A list example


<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<!-- 
A list example 
Author: Elena Machkasova elenam@morris.umn.edu 
Last modified: 2/6/07 
-->
<?php 
/* comments */
$num_style="upper-roman";
$start_number=3;
?>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" /> 
<title>

PHP list numbering example
</title>
</head>

<body>
<ol style="list-style-type: <? print $num_style ?>" start="<? print $start_number?>">
<li>List element</li>

<li>Another list element</li>

<li>And another one</li>
</ol>
</body>
</html>

http://csci1101sp10.morris.umn.edu/~elenam/1101_spring10/first/list.php

More on php variables


<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<!--
Examples of PHP variables and their use
Author: Elena Machkasova elenam@morris.umn.edu
Last modified: 9/24/06
-->
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" /> 
<title>
Examples of PHP variables and their use

</title>
</head>

<body>
<h2>This page tests PHP variables</h2>
<p>
<?php
	       // integers and what you can do with them
$n = 2;
$m = 3;
$sum = $n + $m;

// variables are a part of the string that gets printed
print "$n + $m = $sum<br/>\n";

$prod = $n * $m;
$div = $n / $m;
$remainder = $n % $m;
print "$n * $m = $prod<br/>\n $n / $m = $div<br/>\n $n % $m = $remainder<br/>\n";

// changing $n:
$n = $m + 1;
// using \ to print $
print "\$n = $n<br/>\n";
?>

</p>
</body>
</html>

http://csci1101sp10.morris.umn.edu/~elenam/1101_spring10/first/variables.php

This page is a part of CSci 1101 course web site.