How to convert Model object to array format in php

In PHP programming, it is often necessary to convert the Model object into array format for data processing, such as returning query results in database operations. This article will introduce how to convert Model object to array format.

1. What is a Model object

In PHP, the Model object is a special class used to represent a data model. Simply put, it is used to represent a record or a table in the database. Model objects usually contain fields and corresponding values ​​in the data table, through which operations such as additions, deletions, modifications, and queries can be easily performed.

2. Why do you need to convert the Model object into an array format?

In PHP programming, data needs to be stored in the database for management and operation, and when performing query operations, it is usually necessary to return Result sets, these result sets are usually in an array format, so the Model object needs to be converted into an array format. In addition, when processing and encapsulating data, the Model object also needs to be converted into array format.

3. How to convert the Model object into array format

In PHP, the Model object can be converted using the get_object_vars() function. This function can convert all attributes and values ​​in the object into an array. form return.

The following is an example of converting a Model object into an array:

class User {
    public $name;
    public $age;
}

$user = new User();
$user->name = 'tom';
$user->age = 18;

//将Model对象转换为数组
$userArray = get_object_vars($user);
print_r($userArray);

In the above code, we created an instance of the User class $user, which contains two attributes: name and age. Next, use the get_object_vars() function to convert the $user object into an array, and then use the print_r() function to output the converted array $userArray. The output is as follows:

Array
(

[name] => tom
[age] => 18

)

As you can see, the $user object was successfully converted into an array.

4. Convert all attributes of the Model object into arrays

In the third part, we introduced the use of the get_object_vars() function to convert the attributes and corresponding values ​​in the Model object into arrays . However, if the Model object contains some private properties or protected properties, these properties will not be included when converting the object to an array.

In order to solve this problem, we can use the reflection mechanism in PHP to reflect the object, so that all properties of the object can be included in the converted array.

The following is an example of converting a Model object containing private properties and protected properties into an array:

class User {
    public $name;
    protected $age;
    private $gender;
}

$user = new User();
$user->name = 'tom';
$user->age = 18;
$user->gender = '男';

//反射处理Model对象
$reflect = new ReflectionObject($user);
$properties = $reflect->getProperties();

$userArray = array();
foreach ($properties as $property) {
    $property->setAccessible(true);
    $userArray[$property->getName()] = $property->getValue($user);
}

print_r($userArray);

In the above code, we created an instance of the User class $user, where Contains three attributes: name, age and gender, where age and gender are protected and private attributes. Next, use the reflection mechanism to convert the $user object into the array $userArray, and then use the print_r() function to output the converted array. The output result is as follows:

Array
(

[name] => tom
[age] => 18
[gender] => 男

)

As you can see, the $user object was successfully converted into an array containing all attributes and corresponding values. array.

Summary

This article introduces how to convert the Model object in PHP to array format, including using the get_object_vars() function and reflection mechanism. Using these methods, we can easily convert the Model object into array form for data processing and integration.

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