How to convert php object to two-dimensional array

In PHP development, objects are often converted into arrays. In some specific cases, PHP objects need to be converted into two-dimensional arrays to facilitate data manipulation and processing. So, how can you convert a PHP object into a two-dimensional array?

The function in PHP that converts an object into an array is get_object_vars(). Its function is to return an array composed of the object's attributes and attribute values. Now, let's look at a simple example.

class person {
    private $name = '';
    private $age = '';
    private $gender = '';

    public function setName($name) {
        $this->name = $name;
    }

    public function setAge($age) {
        $this->age = $age;
    }

    public function setGender($gender) {
        $this->gender = $gender;
    }
}

$person = new person();
$person->setName('Tom');
$person->setAge(20);
$person->setGender('male');

print_r($person);  // 输出person对象

Execute the above code and you can see that the output is a person object. If we want to get the attributes and attribute values ​​of the object, we can use the get_object_vars() function. The specific usage is as follows:

print_r(get_object_vars($person));  // 获取person对象的属性和属性值

Execute the above code, you can see that the output is an array, which contains all attributes and attribute values ​​of the person object.

Now, we continue to expand the example to demonstrate how to convert a PHP object into a two-dimensional array.

class person {
    private $name = '';
    private $age = '';
    private $gender = '';

    public function setName($name) {
        $this->name = $name;
    }

    public function setAge($age) {
        $this->age = $age;
    }

    public function setGender($gender) {
        $this->gender = $gender;
    }

    public function toArray() {
        return array(
            'name' => $this->name,
            'age' => $this->age,
            'gender' => $this->gender
        );
    }
}

$person = new person();
$person->setName('Tom');
$person->setAge(20);
$person->setGender('male');

print_r($person->toArray());  // 输出person对象转化的数组

In the above code, we can see that we have added a new toArray() method to convert the person object into an array containing person attributes and attribute values.

Executing the above code, we can see that the output is an array containing the person attribute and attribute value. However, it is not a two-dimensional array.

Next, we further improve the code so that it returns a two-dimensional array.

class person {
    private $name = '';
    private $age = '';
    private $gender = '';

    public function setName($name) {
        $this->name = $name;
    }

    public function setAge($age) {
        $this->age = $age;
    }

    public function setGender($gender) {
        $this->gender = $gender;
    }

    public function toArray() {
        return array(
            'person' => array(
                array(
                    'name' => $this->name,
                    'age' => $this->age,
                    'gender' => $this->gender
                )
            )
        );
    }
}

$person = new person();
$person->setName('Tom');
$person->setAge(20);
$person->setGender('male');

print_r($person->toArray());  // 输出person对象转化的二维数组

In the above code, we can see that we converted the person object into a two-dimensional array. Among them, the person property is an array containing an element that contains the attributes and attribute values ​​of the person object.

Executing the above code, we can see that the output is a two-dimensional array containing the person attribute and attribute value. In this way, we have implemented the operation of converting PHP objects into two-dimensional arrays.

Summary

In PHP development, we often need to convert objects into arrays. This process is very flexible and can be expanded and improved according to your own needs. Converting PHP objects into two-dimensional arrays makes it very convenient to operate and process data. The above code is just a simple example, we can further improve and expand it according to our own project needs.

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