What is the difference between the functions unlink and unset? zendnwar July 24, 2012 PHP Basic 0 Comments unlink() deletes the given file from the file system. unset() makes a variable undefined. Related Posts What is Constructors and Destructors? zendnwar July 25, 2012 What is Constructors and Destructors? CONSTRUCTOR : PHP allows developers to declare constructo .. Explain include(), include_once, require() and require_once. zendnwar July 24, 2012 Explain include(), include_once, require() and require_once: include() The include() function t ..