PHP Unlink Not working

Question

I am trying to delete photo in php using unlink. I have used it earlier on other server but this time it is not working. I have used absolute path for a test but still does

Answer 1

unlink won't work with unlink('http://www.mysite.com/img1.jpg');

use instead unlink($_SERVER['DOCUMENT_ROOT'].'img1.jpg');//takes the current directory or,

unlink($_SERVER['DOCUMENT_ROOT'].'dir_name/img1.jpg');

There may be file permission issue.please check for this.