I have created a php file which will open a text file(which resides in the same location along with the php file),and i also added some code thus i can change the content of the text file.It was working great in my local host but as soon as i upload the folder to a server i cant save the changed content to the file some permission related error is coming up.Is there any way thus i can forcefully change the content of the file in server?I mean is there any way thus this permission related issues can be overcome?
Access it via FTP and change the permissions to 755 which allows everyone to read / execute and only yourself to write.
Read more about permissions to find what best suits your requirements.