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 zend engine in PHP? zendnwar July 25, 2012 What is zend engine in PHP? Zend Engine is used internally by PHP as a complier and runtime eng .. How to Transform a String from Multi-Line to Single-Line in PHP? zendnwar August 18, 2014 It is very simple. Just add below code. echo str_replace(array(“\r”,”\n” ..