PHP Tutorial
How do I create a PHP document?
First you will need to make sure you have the following installed on your
computer or have FTP access to: a web server (Apache) and php4. All PHP files
are simple plain text (ASCII) files. This means that PHP scripts can be created
no matter what Operating System you are running (UNIX, Windows, Mac...). There
are several PHP GUI interfaces available, however this Tutorial does not suggest
any particular one.
The most important parts of a PHP script are 1.) the processor instruction tags,
and 2.) the path to the PHP parser. The processor tags are <? to begin a
PHP statement, and ?> to end a PHP statement.
A text editor is open… now what?
PHP scripts can be created right inside of an HTML page. Our first example will
be named hello_world.php3. (NOTE:The file name can be whatever you wish. This is
an arbitrary name.) Type the following data into your hello_world.php3 file.
<html>
<head>
<title>Hello World</title>
</head>
<body>
<? #!/usr/local/bin/php
echo "Hello World!";?>
</body>
</html>
Save this file and upload it to your Virtual Server Account, The PHP script must
be browsable. The file should be parsed.
Commenting in PHP
Commenting is used to hide code or to write a comment about the code. To comment
use "//" at the beginning of the text to be commented out. An example is shown
below:
<html>
<head>
<title>Hello World</title>
</head>
<body>
<? //The following line of code is used to determine what kind of browser being
used.
&#!/usr/local/bin/php
echo "Hello World!";
echo $HTTP_USER_AGENT;
?>
</body>
</html>
