How to Convert Object to Array in PHP

Managing data structures is at the heart of programming. Whether you're organizing API responses or structuring databases, knowing how to convert an object to an array or transform an array into an object is a game-changer. These techniques save you time and make your code more efficient and easier to debug.

You’ve probably faced challenges with messy data or cumbersome conversions at some point. That’s exactly why this guide is here. By understanding these methods in PHP and JavaScript, you’ll be equipped to streamline data handling and avoid common pitfalls. Think of this as your go-to resource for better coding practices.

Get ready to explore clear examples, step-by-step explanations, and practical tips to make your coding experience smoother and more productive. Let’s begin!

How to Convert Object to Array in PHP?

Understanding how to convert an object to array PHP can save you a lot of trouble, especially when dealing with data transformation in APIs or dynamic applications. 

PHP provides several straightforward methods for this conversion, each tailored for different scenarios. Whether you need a quick fix or a scalable approach, you'll find a method that suits your needs.

Discover three powerful techniques to achieve this conversion below.

Typecasting Object to Array PHP

When it comes to a fast and simple way to convert object to array in PHP, typecasting is your go-to method. With minimal syntax, you can achieve the transformation directly. But does it have limitations? Sure, it’s quick, but it’s not always suited for complex objects.

To begin, use this simple syntax to cast an object into an array without additional complexities.

$array = (array) $object;

The following program shows how to convert object to array using typecasting.

<?php
// Creating an object
$object = (object) [
    "name" => "John Doe",
    "age" => 30,
    "email" => "john.doe@example.com"
];

// Converting object to array
$array = (array) $object;

// Displaying the array
print_r($array);
?>

This output confirms how typecasting transforms the object into a structured array.

Array
(
    [name] => John Doe
    [age] => 30
    [email] => john.doe@example.com
)

Explanation of the Program

The object $object is created with three properties: name, age, and email. Using (array) before the object instantly converts it into an associative array. The print_r() function reveals the array structure in a readable format. This method is ideal for small objects but may not handle nested structures well.

Also Read: Interface in PHP | PHP OOPs Interfaces

Typecasting is easy, but you might need more flexibility. The following technique covers this gap.

JSON Encoding and Decoding

JSON encoding and decoding allow you to handle nested objects and complex data structures. This method is a lifesaver when working with Rest APIs or exporting data to external systems. The trick is to convert the object into a JSON string and then decode it back as an array.

Check out how you can use this method effectively.

Here’s the syntax you’ll need for converting objects to arrays using JSON encoding and decoding.

$jsonString = json_encode($object);
$array = json_decode($jsonString, true);

The following program walks you through the steps of encoding and decoding to achieve the conversion.

<?php
// Creating an object
$object = (object) [
    "name" => "Jane Doe",
    "details" => [
        "age" => 25,
        "profession" => "Engineer"
    ]
];

// Converting object to array
$jsonString = json_encode($object);
$array = json_decode($jsonString, true);

// Displaying the array
print_r($array);
?>

Check the result of using JSON encoding and decoding to convert object to array.

Array
(
    [name] => Jane Doe
    [details] => Array
        (
            [age] => 25
            [profession] => Engineer
        )
)

Explanation of the Program

The json_encode() function converts the object into a JSON string, capturing its structure, including nested arrays or objects. The json_decode() function transforms this string into an array, preserving nested elements. Adding true as the second parameter ensures the result is an array, not another object.

This method shines when you handle multi-layered data but requires additional steps. The next approach flips the process.

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How to Create an Object from an Array in PHP

The reverse process—transforming an array into an object—can be just as crucial. Imagine receiving data from a database or API in an array format but needing it as an object for cleaner property access. PHP gives you multiple options to achieve this.

Follow these approaches to convert an array into an object effectively. Typecasting works for simple cases where you need quick conversions.

<?php
// Creating an array
$array = [
    "title" => "Developer",
    "experience" => 5
];

// Converting array to object
$object = (object) $array;

// Displaying the object
print_r($object);
?>

The output below showcases the structure of the converted object.

stdClass Object
(
    [title] => Developer
    [experience] => 5
)

The following approach illustrates converting nested arrays into objects using json_decode.

<?php
// Creating an array
$array = [
    "company" => "Tech Corp",
    "employees" => [
        "John" => "Manager",
        "Emily" => "Engineer"
    ]
];

// Converting array to object
$jsonString = json_encode($array);
$object = json_decode($jsonString);

// Displaying the object
print_r($object);
?>

Here’s how the resulting object appears when you decode nested data structures.

stdClass Object
(
    [company] => Tech Corp
    [employees] => stdClass Object
        (
            [John] => Manager
            [Emily] => Engineer
        )
)

Converting arrays to objects is particularly helpful in the following cases. 

• Integrating APIs that prefer objects over arrays.
• Simplifying property access with -> instead of associative array syntax.
• Maintaining consistent data formats across functions and classes.

Now that you’ve mastered these conversions in PHP, it’s time to shift gears. You’ll next explore how similar operations work in JavaScript.

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