What is the way to define an array in php

There are three main ways to define arrays in PHP: Indexed arrays: Store elements using numeric index keys. Associative array: uses string key value to store elements. Multidimensional arrays: Store subarrays in array elements.

Array definition methods in PHP

There are three main methods to define arrays in PHP:

1. Index array

In the index array defined, elements are stored with numeric index keys.

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

2. Associative array

In an associative array, elements are stored with string key values.

$fruits = array("apple" => "red", "banana" => "yellow", "orange" => "orange");

3. Multidimensional array

Multidimensional array stores subarrays in array elements.

$fruits = array(
    "apple" => array("red", "green"),
    "banana" => array("yellow", "green"),
    "orange" => array("orange", "yellow")
);

Additional information:

• You can also use the [] syntax to define an array.
• Array elements can be of any data type, including other arrays.
• Array size is dynamic and elements can be added or removed at runtime.

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