Remove Array Item
To remove an existing item from an array, you can use the array_splice() function.
With the array_splice() function you specify the index (where to start) and how many items you want to delete.
Example
Remove the second item:
$cars = array("Volvo", "BMW", "Toyota");
array_splice($cars, 1, 1);
After the deletion, the array gets reindexed automatically, starting at index 0. Continue reading PHP Delete Array Items