? PHP Multidimensional Array

? Quick Overview

A multidimensional array is an array of arrays. In PHP, multidimensional arrays can have more than one level of depth, which allows you to store more complex data structures like tables, records, or grids.

? Key Concepts

Each element of a multidimensional array is itself another array
Used to represent structured data such as tables or records
Accessed using multiple index values

? Syntax / Theory

The syntax for creating a multidimensional array is as follows:

? View Code Example

// Creating a basic multidimensional array
$array = array(
array("value1", "value2"),
array("value3", "value4")
);

? Code Example

Here's a simple example of a multidimensional array:

? View Code Example

// Defining a multidimensional array of students
<?php
$students = array(
array("Peter", 35, "Math"),
array("John", 30, "Science"),
array("Doe", 25, "History")
);

echo $students[0][0];
?>

? Live Output / Explanation

Output

Peter

The first index selects the first student, and the second index selects the student's name.

? Interactive Visualization

Click on any cell below to see how to access that specific data using PHP indices:

	Index [0] (Name)	Index [1] (Age)	Index [2] (Subject)
Row [0]	Peter	35	Math
Row [1]	John	30	Science
Row [2]	Doe	25	History

Click a cell above to see the PHP selector!

? Use Cases

Student management systems
Database-like table structures
Product inventories
Grid-based data representation

✅ Tips & Best Practices

Use multidimensional arrays to represent structured datasets
Maintain consistent sub-array formats
Use loops to efficiently process nested data

? Try It Yourself

Create a multidimensional array of students and display their details using loops
Build a store inventory with product name, price, and stock count
Add a new field like phone number to an existing student record