Are php arrays objects?

php arrays are not objects. In PHP, arrays and objects are two different data types. An array is a collection of ordered data; and an object is the result of instantiation of a class, which contains not only properties but also methods. Objects can encapsulate operations on data, but arrays cannot.

The operating environment of this tutorial: Windows 7 system, PHP version 8.1, DELL G3 computer

php array is not an object.

In PHP, arrays and objects are two different data types.

php array

An array is a collection of data, which is a whole formed by organizing the data according to certain rules. The essence of an array is to store, manage and operate a set of variables. According to the dimensions of the array, it can be divided into one-dimensional array, two-dimensional array and multi-dimensional array. We can create arrays using the array() function.

<?php
header("Content-type:text/html;charset=utf-8");
$arr= array("香蕉","苹果","梨子","橙子","橘子","榴莲");
var_dump($arr);
?>

php object

Object can be used to store data. Objects must be declared in PHP. The class object must first be declared using the class keyword. Classes are structures that can contain properties and methods. Then define the data type in the class and use the data type in the instantiated class.

In a language that supports object-oriented, the common characteristics and behaviors of each specific thing can be abstracted into an entity, called a "class", and the object is the result of the class being instantiated using the new keyword. .

<?php
    class Car  //使用 class 声明一个类对象
    {
        var $color;
        function car($color="black") {
            $this->color = $color;
        }
        function getColor() {
            return $this->color;
        }
    }
    $car = new Car();
    $car->car(&#39;red&#39;);
    echo $car->getColor();
?>

Explanation:

There are not only properties but also methods in the object. Objects can encapsulate operations on data, but arrays cannot.

So: If you are simply storing data, use arrays, but if you want to define operations on these data, it is more recommended to use objects!

Example:

If you want to add a common method to the data being manipulated, such as the return value being encrypted, or other functions, you can consider it at this time Write a class and use the corresponding method of the object to get the data you want when returning data.

From the perspective of framework design and expansion, if you can still use objects, use objects to facilitate expansion and maintenance. For example, if arrays are used everywhere in your code, one day the data returned by the interface changes, and you have to make a lot of modifications. If you use objects, the modification workload will be smaller.

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