How to create a Two Dimensional Array in PHP - Step by Step Examples

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How to create a Two Dimensional Array in PHP ?

Answer

To create a Two Dimensional Array in PHP, you can use nested array initialization.

✐ Examples

1 Creating a 2D Array of Numbers

In this example,

We initialize a 2D array of numbers named $matrix with dimensions 3x3.
We assign values to the elements of the array.
The outer loop iterates over rows, and the inner loop iterates over columns to fill the array.

PHP Program

<?php 
$matrix = [];
for ($i = 0; $i < 3; $i++) {
    $matrix[$i] = [];
    for ($j = 0; $j < 3; $j++) {
        $matrix[$i][$j] = $i + $j;
    }
}
print_r($matrix);
?>

Output

Array
(
    [0] => Array
        (
            [0] => 0
            [1] => 1
            [2] => 2
        )

    [1] => Array
        (
            [0] => 1
            [1] => 2
            [2] => 3
        )

    [2] => Array
        (
            [0] => 2
            [1] => 3
            [2] => 4
        )

)

2 Creating a 2D Array of Strings

In this example,

We initialize a 2D array of strings named $matrix with dimensions 2x2.
We assign values to the elements of the array.
The outer loop iterates over rows, and the inner loop iterates over columns to fill the array.

PHP Program

<?php 
$matrix = [];
for ($i = 0; $i < 2; $i++) {
    $matrix[$i] = [];
    for ($j = 0; $j < 2; $j++) {
        $matrix[$i][$j] = 'Row ' . ($i + 1) . ', Column ' . ($j + 1);
    }
}
print_r($matrix);
?>

Output

Array
(
    [0] => Array
        (
            [0] => Row 1, Column 1
            [1] => Row 1, Column 2
        )

    [1] => Array
        (
            [0] => Row 2, Column 1
            [1] => Row 2, Column 2
        )

)

Summary

In this tutorial, we learned How to create a Two Dimensional Array in PHP language with well detailed examples.

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How to create a Two Dimensional Array in PHP - Step by Step Examples

How to create a Two Dimensional Array in PHP ?

Answer

✐ Examples

1 Creating a 2D Array of Numbers

PHP Program

Output

2 Creating a 2D Array of Strings

PHP Program

Output

Summary

More PHP Arrays Tutorials