PHP Scripting Essentials
Welcome to the Freeola Internet customer support pages. This guide is designed to give some general information about PHP scripting. For more internet help topics please visit our main Support Page.
Below is some essential information for using PHP on Freeola's hosting services, and also some examples of more advanced features such as hit counters & php includes.
As you'd expect from the UK's best free Internet package, Freeola enables users to take advantage of the superior web scripting and programming language - PHP.
PHP, which stands for PHP: Hypertext Preprocessor, is an HTML-embedded scripting language which will allow you to create an interactive website without the use of CGI. Guestbooks, 'formmail' and hit counters are just a few things that PHP can handle. To see some examples of what PHP elements you can use, please click here.
Like standard HTML pages, all files are uploaded into your htdocs directory on the Freeola server.
Freeola's standard hosting servers currently support PHP 5.3.6. The VIP Hosting servers currently run version 5.2.10. For a full list of PHP versions and modules on each of the Freeola web servers please visit the PHP Configuration and Modules page.
Following a server upgrade, a change has been made to our PHP configuration which means that permissions on PHP scripts need to be set more securely than they did previously. To change any permissions of any web file or folder Freeola recommends you use an FTP client such as Filezilla, for example.
In order to comply with the new security requirements you must ensure that you follow the guidelines below :
PHP scripts cannot be in a folder that is writable by anyone other than the user.
The usual permissions for your htdocs folder would be to set them to 755 not 777.
PHP scripts cannot have their permissions set so that they are writable by anyone other than the user.
The usual permissions for your PHP files would be to set them to 755 not 777.
PHP script files cannot have their permissions set so that they are writable by anyone other than the user.
The usual permissions for your PHP files would be to set them to 644 not 777.
Some commands such as exec, shell_exec, system and passthru are no longer available.
PHP5 support is now available on all standard and VIP Freeola Servers.
Following this upgrade, a change has been made to our PHP configuration to switch register_globals OFF. This basically means that statements such as:
will no longer function correctly. There is a simple resolution to this problem in the form of some code that should be inserted into the top of your page. Here are some examples:
If the variable you are trying to access is passed via the URL string:
If the variable you are trying to access is passed via a form post operation:
If the variable you are trying to access is a server environment variable:
You can display the local date and time on your webpage using PHP. Simply copy and paste the following PHP code into your webpage where you would like the date and time to be displayed:
<?php echo date('D M d, Y H:i:s'); ?>
Don't forget that you must give the page a .php ending for PHP to work correctly (e.g. 'mypage.php').
An 'include' is a way of embedding information from a single file into another file. This is particularly useful for multiple web pages which need to show the same piece of information. Once set up you then only need to change one file to change that information across all of your pages.
A PHP 'include' statement looks like this:
<?php include('pagename.php'); ?>
You simply insert this code into your web page(s) exactly where you want the information from the source page to appear. Lets say you have a web site and on every page you show a 'quote of the day'. The quote would be saved in a separate file (say 'quote.php') as plain text and then you could use the following code on every web page where you want the quote to appear. Example:
Today's quote is: <?php include('quote.php'); ?>
The source file can even contain HTML code if required. Includes can save you time and effort when it comes to updating your web site so it's well worth a look for anybody wanting similar content on more than a few pages on their web site.
The file that contains the PHP 'include' statement must have a .php extension. The source file can have any name with or without a file extension (e.g. filename.php', 'filename.html', 'filename.txt' or just 'filename').
This useful piece of code allows you to display random images on your web site. The images need to be stored in your web space and the code will randomly pick one to display, it is similar to the way that some companies display random adverts on their web pages. All you need to do is edit the PHP file to match your situation, upload it to your web space and then place the line:
<?php include "randomimage.php"; ?>
where you would like the images to occur.
This code allows you to password protect content on a webpage so that the user must enter the correct details before he can view it. All you need to do is name the page (keeping the .php extension) and then edit it in a text editor putting in your chosen username and password in the relevant places. Put the content you want to protect inside the page and then upload. Your page will now be protected.
Password protecting pages within your Freeola hosted website is done quickly and simply if you are signed up for our VIP+ Hosting service. Enabling this service will allow the protecting of any web page within your site via your MyFreeola account.
Some content management systems that you may decide use with your hosting may come in a compressed format and offer you an option to extract files on the server using zlib. By default this is not fully enabled on Freeola's hosting servers however can be activated by adding the following lines to a file named .htaccess in the root of your htdocs directory.
php_flag zlib.output_compression on php_value zlib.output_compression_level 5
It is also possible to add a visitor counter to your website. To do this, please download the script file linked to below and follow the instructions.
Either Cut and Paste the code sections of the counter.php file into your existing web page or upload the page with the .php extension (i.e. index.php) into the htdocs directory.
Now create a new directory called count within your htdocs folder.
If you use Internet Explorer, use the FTP link in your MyFreeola account to view the "count" folder. Right click it and choose "properties" then make sure that all the boxes in the "Permissions" section are ticked. Once you have done this your counter should work.
If you do not have this browser then you will need to change the permissions using a compatible FTP client. SmartFTP will work fine, once you have connected then right click on the "count" folder in the main window and select properties/CHMOD. Change the "permissions" number to "777".
That's it, you should now have a basic counter that records hits to your site!
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