How to Add an Element to the Beginning of an Array in PHP?

How to Prepend an Element to the Start of an Array in PHP

inserting an element to the end of an array in PHP is effortless using the syntax $arr[] = $item. However, inserting an element at the beginning of an array requires a different approach.

Solution: Utilizing array_unshift()

PHP provides the array_unshift() function tailored for this purpose. It takes two arguments: the array and the item to be inserted. The item is added to the beginning of the array, shifting the existing elements to the right.

Example

The following code demonstrates how to use array_unshift() to insert an element to the start of an array:

<code class="php">$arr = array('item2', 'item3', 'item4');
array_unshift($arr, 'item1');
print_r($arr);</code>

Output:

Array
(
 [0] => item1
 [1] => item2
 [2] => item3
 [3] => item4
)

This sample code modifies the $arr array by prepending 'item1' to the beginning. The resulting array now has 'item1' as its first element, followed by the original elements in their updated positions.

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