Demo For: Using PHP To Delete / Remove Array Keys

Example 1: Removing a key using its position in the array
Following are the original array contents:

Array
(
    [0] => apple
    [1] => mango
    [2] => grapes
    [3] => pineapple
)

Following are the array contents AFTER removing the key (1) from array using its position:

Array
(
    [0] => apple
    [2] => grapes
    [3] => pineapple
)

Example 2: Removing a key using its specified Key in the array
Following are the original array contents:

Array
(
    [1] => apple
    [2] => mango
    [3] => grapes
    [4] => pineapple
)

Following are the array contents AFTER removing the key from array, using key name (3):

Array
(
    [1] => apple
    [2] => mango
    [4] => pineapple
)

Example 3: Removing a key using its name in the array
Following are the original array contents:

Array
(
    [Fruit 1] => apple
    [Fruit 2] => mango
    [Fruit 3] => grapes
    [Fruit 4] => pineapple
)

Following are the array contents AFTER removing the key from array, using key name (Fruit 4):

Array
(
    [Fruit 1] => apple
    [Fruit 2] => mango
    [Fruit 3] => grapes
)