PHP array_unshift Function

Definition

The array_unshift() function inserts one or more elements at the beginning of an array.

All numerical array keys will be modified to start counting from zero. String keys will remain the same.

The basic syntax of the array_unshift() function is given with:

      array_unshift(array, value1, value2, ...);

The array_unshift() function accepts the following parameters.

Example1 : Insert element "web" ,"designing" to an array.

Output :

Array
(
    [0] => web
    [1] => designing
    [2] => house
    [3] => online
    [4] => promotiion
)

Example2 : for  associative arrays as demonstrated below

Output :

Array
(
    [0] => web
    [a] => designing
    [b] => house
    [c] => online
    [d] => promotiion
)