PHP array_push

In PHP, array_push is a built-in function used to add one or more elements to the end of an array. It is a convenient way to add new elements to an existing array without explicitly specifying the array’s key.

Here’s the syntax of the array_push function:

array_push(array &$array, mixed $value1 [, mixed $value2 [, mixed $... ]]): int

Parameters:

• $array: The input array to which the elements will be added. This parameter is passed by reference, which means the changes will directly modify the original array.
• $value1, $value2, …: The values to be added to the end of the array.

Return Value:
The function returns the new number of elements in the array after adding the specified values.

Example:

// Initialize an empty array
$fruits = array();

// Add elements to the array using array_push
array_push($fruits, "apple", "banana", "orange");

// Output the modified array
print_r($fruits);

Output:

Array
(
    [0] => apple
    [1] => banana
    [2] => orange
)

In this example, the array_push function is used to add the elements “apple,” “banana,” and “orange” to the end of the $fruits array.

It’s worth noting that array_push can be used with arrays that have both numerical and associative keys. However, if you want to add a single element to an array with a specific key, you can directly assign the value to that key, like this:

// Initialize an empty array
$person = array();

// Add an element to the array with a specific key
$person['name'] = 'John';
$person['age'] = 30;

// Output the modified array
print_r($person);

Output:

Array
(
    [name] => John
    [age] => 30
)