How to add element to php array

Creating an array:

$custom_array = ['a','b','c'];

or

$custom_array = array('a','b','c');

Add an element to an array:

In php array_push function used to add an element to array. Syntax of array_push is

array_push(array, var);

If you want to add 'd' to $custom_array

$element='d';

array_push($custom_array , $element);

Result is :

Array ( [0] => a [1] => b [2] => c [3] => d )

Remove an element from array:

If you want to remove 'b' from $custom_array use unset function:

unset($custom_array [1]);

Result is :

Array ( [0] => a [2] => c )