How to add a value to an array in php

In PHP, adding a new value to an array is very simple and straightforward.

Method 1: Use array brackets plus new key-value pairs

Syntax:

$arrayName['key'] = 'value';

Example:

$fruits = array("apple", "banana", "orange");
$fruits["watermelon"] = "red";
print_r($fruits);

Output:

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

In the above code, $fruits["watermelon"] = "red"; adds a new key-value pair "watermelon" => "red" $fruits in the array.

Method 2: Using PHP’s array_push() function

Syntax:

array_push($arrayName, 'value');

Example:

$fruits = array("apple", "banana", "orange");
array_push($fruits, "watermelon");
print_r($fruits);

Output:

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

In In the above code, array_push($fruits, "watermelon"); adds a new element "watermelon" to the end of the $fruits array.

Method 3: Use PHP’s [] to add directly to the end of the array

This method is only applicable to PHP 5.4 or higher.

Syntax:

$arrayName[] = 'value';

Example:

$fruits = array("apple", "banana", "orange");
$fruits[] = "watermelon";
print_r($fruits);

Output:

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

In the above code, $fruits[] = "watermelon" ; Added a new element "watermelon" to the end of the $fruits array.

No matter which method you choose, adding new values ​​to a PHP array is very simple.

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