What's the difference between unset() and unlink()
 

What's the difference between unset() and unlink()

In PHP unlink() is a function for file system handling, unlink() is used to delete files. Suppose you have uploaded a file and wants to delete this file through the coding then unlink() function is used to delete the file.

unset() is a function for variable management. It will make a variable undefined. Or we can say that unset() is used to null out the value of a given variable. OR Unset () is used to destroy a variable in PHP. In can be used to remove a single variable, multiple variables, or an element from an array.

unset() destroys the specified variables. unlink is a function for file system handling, unlink is used to delete files. ... For example you have uploaded a file, and you have to delete that file from the php code then you can use unlink function to delete that file. While unset is used for variable and array.