LNDON SOUTH BANK UNIVERSITY
COMPUTER SERVICES DEPARTMENT
Embedding html and jpeg references into PHP scripts at LSBU
Introduction.
Because of the security mechanisms implemented at LSBU you need to
ensure that your code follows the guidelines below at the development stage
prior to uploading your site to the main University Web Site
Directory structure
~username means the home directory of a user called username. For
example, my home directory is ~swiggtc
~username/.public_html is where your web site should be uploaded.
~username/images is where you must put any image files (.jpg, .png,
.gif)
~username/cgi-bin is where you must put your php scripts.
Create a file called config.php4
To help make your code more portable so that minimal changes are needed
between your development environment and your deployment environment
put the following kinds of definitions into a file called config.php4 in the
appropriate directory within the cgi-bin area.
Database location, name and access (if applicable)
// eg
//
$db_host="mysql.lsbu.ac.uk"
//
$db_database="username"
//
$db_login="username"
//
$db_password="mypassword"
//
And for images the location of the directory (within .public-html) where you put
all your image files which might be
// eg $images="~username/images/"
$images="/~swiggtc/images/"
Tom Swigg\PHPimages.doc
09 March 2016
Computer Services
For each of your php scripts you will then have a statement
include_once ("config.php4");
which will ensure the these definitions are available to your code, in particular
the location of the images directory as ~username/images
In your other php scripts, the ones that include config.php4 you can now
reference images as follows.
<img src="<?php echo $images?>hello-world.jpg" alt="Hello
World Image" width="800" height="650"/>
Here we have a normal img tag reference to an image with src, alt, width and
height attributes. However, we have embedded within the html a piece of php
code
<?php echo $images?>
which will evaluate to the location of the images directory /~swiggtc/images/
and so the value of the src attribute will be
"/~swiggtc/images/hello-world.jpg"
which will correctly reference the desired jpeg image.
Tom Swigg\PHPimages.doc
09 March 2016
Computer Services