How to convert object to array object in php

During the development process, sometimes we need to convert an object into an array object so that we can operate it or process data. This article will introduce how to use PHP to convert objects into array objects.

PHP is a free and open source scripting language that is widely used in the field of Web development. PHP is a dynamic language that supports object-oriented programming. For object processing, PHP provides many methods, including methods for converting objects to array objects. Below we will introduce in detail how to use PHP to convert objects to array objects.

1. Use the object conversion function

PHP provides a very convenient function that can directly convert an object into an array object. This function is get_object_vars(). The function of this function is to return an array containing the properties of the object.

The following is an example of using the get_object_vars() function to convert an object into an array object:

<?php
class User {
  public $name = &#39;david&#39;;
  public $age = 18;
}

$user = new User();
$arr = get_object_vars($user);
print_r($arr);
?>

The output results are as follows:

Array
(
    [name] => david
    [age] => 18
)

As you can see, using the get_object_vars() function can Very convenient to convert objects into array objects.

2. Use foreach loop conversion

In addition to using the get_object_vars() function, we can also use the foreach loop to process objects. The following is an example of using a foreach loop to convert an object into an array object:

<?php
class User {
  public $name = &#39;david&#39;;
  public $age = 18;
}

$user = new User();

$arr = array();
foreach ($user as $key => $value) {
    $arr[$key] = $value;
}
print_r($arr);
?>

The output result is consistent with the result of using the get_object_vars() function above:

Array
(
    [name] => david
    [age] => 18
)

It can also be easily implemented using a foreach loop The operation of converting an object to an array object.

3. Using json conversion

In PHP, we can also use the json_encode() and json_decode() functions to convert objects. The following is an example of using json_decode() to convert an object into an array object:

<?php
class User {
  public $name = &#39;david&#39;;
  public $age = 18;
}

$user = new User();
$json = json_encode($user);
$arr = json_decode($json, true);

print_r($arr);
?>

Use the json_decode() function to convert a json format string into an array object, and use the json_encode() function to convert an object into a json format character string. In this way, objects can also be converted into array objects very conveniently.

Summary

Whether you use the get_object_vars() function, a foreach loop or the json conversion method, you can easily convert objects into array objects. You can choose according to your own needs during development.

In actual project development, converting objects to array objects is a very common operation. Mastering this method allows us to process and operate data more flexibly. I hope this article can be helpful to everyone.

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