Examples of 2D Indexed Arrays in PHP

The following article shows some Examples of 2D Indexed Arrays in PHP.

Example with numerical indices. The following example shows a 2D indexed array with dimension 2X2.

$matrix = array(
    array(1, 2, 3),
    array(4, 5, 6),
    array(7, 8, 9)
);

Example with string indices. The following example shows the use of string indices.

$table = array(
    array("name" => "John", "age" => 25, "city" => "New York"),
    array("name" => "Mary", "age" => 30, "city" => "London"),
    array("name" => "Bob", "age" => 20, "city" => "Paris")
);

Example with mixed indices. The following example shows the use of mixed indices.

$items = array(
    array("item_id" => 1, "name" => "Apple", "price" => 1.5),
    array("item_id" => 2, "name" => "Banana", "price" => 2.0),
    array("item_id" => 3, "name" => "Orange", "price" => 1.0)
);

Example with dynamic indices.

$grades = array();
$grades[] = array(80, 90, 70);
$grades[] = array(75, 85, 95);
$grades[] = array(60, 65, 70);

Example with empty 2D array.

$empty_array = array(
    array(),
    array(),
    array()
);

In all these examples, the first index is used to access the row and the second index is used to access the column in the 2D indexed array.

Further Reading