By using PHP and GD library support we can develop powerful graphics scripts which can handle many types of image manipulation and development. In new version of GD and PHP support we can develop even FLASH images and animations.
Next time you need a graph or draw a pie chart you need not download the data and then develop a graph in your office software. PHP can online display charts and graphs online by taking data from tables.
We have to ensure that the support for all these graphics capabilities are available in our server and if not available then how to add them. We will learn all these along with script development here. First we will start with how to enable GD support in your server.
The first step to draw line chart or graphs is to draw lines of different length and reading the coordinates. We can change the gallery background or canvas colour also.
We can add watermark images present in a directory or just uploaded by using GD support. The watermark can be added on the fly to the image while uploading.
User can enter name and grade through a form and submit. With this data and using a template, certificate can be generated by adding text to the image using ImageString().