Using php how can we Validate doc,txt,pdf files

[Santanio]

I would like to know that how can we validate the doc, txt ,pdf and other fileformats by using php. Similarly, how we do for picture format like jpeg in php. Does any body knows about it? Kindly provide me the correct logical solution for the above issue. Any kind of help on the above issue would be appreciated.

[Praetor]

The robots.txt generator is a script that is created using PHP programming with which you will be able to browse through the directory structure of your web server. And if a robots.txt is found, the corresponding folders are checked. In addition, the script warns you if no index files or htaccess files were identified. The script is also simple and easy to customize.

[Katty]

I don't think so, there is any such program which will allow you to do so. However, you will need to code them separately in order to validate them in other formats.