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PHP Multidimensional Arrays

PHP Multidimensional Arrays
A multidimensional array is an array containing two, three, four, five, or more arrays. The increasing number of dimensions, increases the code complexity for the developers. The most popular arrays are single, two and three dimensional arrays.

Two dimensional Arrays:
A PHP two-dimensional array can be defined as an array of arrays that needs two indices for every element.

Three dimensional Arrays:
A PHP three-dimensional array can be defined as an array of arrays of arrays that needs three indices for every element.

Example: Accessing the elements of a two dimensional array.

<!DOCTYPE html>
$cars = array
  array("Land Rover",17,15)
echo "Accessing the elements of the array.<br><br>" ;
echo $cars[0][0].": In stock: ".$cars[0][1].", sold: ".$cars[0][2].".<br>";
echo $cars[1][0].": In stock: ".$cars[1][1].", sold: ".$cars[1][2].".<br>";
echo $cars[2][0].": In stock: ".$cars[2][1].", sold: ".$cars[2][2].".<br>";
echo $cars[3][0].": In stock: ".$cars[3][1].", sold: ".$cars[3][2].".<br><br>";
echo "Looping through the array.<br><br>";
for ($row = 0; $row < 4; $row++) {
  echo "<p><b>Row number $row</b></p>";
  echo "<ul>";
  for ($col = 0; $col < 3; $col++) {
	echo "<li>".$cars[$row][$col]."</li>";
  echo "</ul>";

Accessing the elements of the array.


Volvo: In stock: 22, sold: 18.

BMW: In stock: 15, sold: 13.

Saab: In stock: 5, sold: 2.

Land Rover: In stock: 17, sold: 15.


Looping through the array.


Row number 0

  • Volvo
  • 22
  • 18

Row number 1

  • BMW
  • 15
  • 13

Row number 2

  • Saab
  • 5
  • 2

Row number 3

  • Land Rover
  • 17
  • 15
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