|
|
|
|
|
|
|
|
|
|
|
 |
 |
 |
 |
|
||||||
 |
 |
 |
|
 |
 |
 |
 |
 |
|
|
 |
|
 |
|
| •
Support Home • WebInfo • Hosting • Access • WebDirect • Phone Support • System Status |
|
|
 |
|
| PHP NetGate provides PHP (the most current stable version) functionality to our customers with virtual hosting services. PHP with MySQL support is provided to enhance the MySQL and mSQL data base functionality also provided with those accounts. What is PHP? Why use PHP? You may ask yourself, why use PHP over other scripting languages
such as Perl, ASP, Cold Fusion, Java, Python, or shell scripts,
and the answer is simplicity, a very easy to use data base interface
and platform independence. PHP was installed as a CGI application at the time your account was created. By installing PHP as a CGI application we can provide you with the most flexibility in the use of PHP as well as provide you with high degree of security. Using PHP is very easy. All you have to do is give your PHP based page the extension ".php" and the file will be parsed by the PHP interpreter located in your cgi-bin directory. Example 1-1. An introductory example Step 1: Create a standard HTML page with embedded PHP code using your favorite editor. An example follows.
<html><head>
<title>PHP Example</title>
</head>
<body>
<?php
echo "Hi, I'm a PHP script!";
?>
</body></html>
Save the file with a ".php" file extension. We'll save this
file as "first.php". Upload the file to your website, be
sure to upload the file as "text" just like you would any
other HTML file.
Step 2: Test the page.
You should see the "Hi, I'm a PHP script!" text appear in your web browser. Security The version of PHP installed in your cgi-bin directory was compiled and installed with security in mind. PHP was compiled using the security feature "enable-force-cgi-redirect". The "enable-force-cgi-redirect" option in combination with our existing security features enabled via Personal CGI provide you with a sound basis for running PHP scripts. The ultimate responsibility for security resides with you and how you code and maintain the permissions on your site.
enable-force-cgi-redirect This compile-time option prevents anyone from calling PHP directly with a URL like http://my.host/cgi-bin/php/secretdir/script.php. Instead, PHP will only parse in this mode if it has gone through a web server redirect rule. More information on enable-force-cgi-redirect and security concerns in PHP can be found on the PHP website at:
http://www.php.net/distributions/bigmanual.html#SECURITY
Version and Options You can check the current version of PHP and all current default options using the info.php page that was installed in your "www" directory when PHP was installed. If you do not have the info.php page you can run the PHP installer, described below, to update your version of PHP to the latest and install the info.php page. Installing PHP PHP is installed as a standard cgi application into your personal cgi-bin directory. The latest stable version of PHP was installed into your cgi-bin directory when your account was set up. If you do not have a "php" application in your cgi-bin directory you can easily install it yourself by using telnet to access your account. Once logged into the UNIX shell run the "installphp4" command to complete the installation. And, if you're not comfortable using UNIX we'll be happy to install it for you. Just send an e-mail to support@netgate.net. Controlling PHP Server Resources PHP is very similar to Perl. It's an interpreted language with all the same potential problems. There are two script control options you may want to look at to ensure that the PHP script doesn't run away from itself. set_time_limit
(seconds) Both of these options can be set in the script, or in your "php.ini" file. An excellent overview of PHP resource management is available on the PHP site. More Information For more information on using PHP please visit the PHP web site at www.php.net. |