Given an array of elements, we have to delete an element from the array by using the unset() function.
Input : $arr = array("Harsh", "Nishant", "Bikash", "Barun"); unset($arr); Output : Array (  => Harsh  => Nishant  => Bikash ) Input : $arr = array(1, 2, 6, 7, 8, 9); unset($arr); Output : Array (  => 1  => 2  => 6  => 8  => 9 )
unset() function: The function accepts a variable name as parameter and destroy or unset that variable.
Approach: This idea to solve this problem using the unset function is to pass the array key of the respective element which we want to delete from the array as a parameter to this function and thus removes the value associated to it i.e. the element of an array at that index.
Below programs illustrate the above approach:
Array (  => Harsh  => Bikash  => Nishant  => Deep )
Array (  => 1  => 8  => 9  => 7  => 3  => 4 )
Note: The array keys will not be reordered after using the unset() function.
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