Home > Article > Backend Development > Detailed explanation of the black technology of how to convert PHP objects into arrays
Usually in php, it takes some effort to process objects into arrays.
But here today, I will tell you a so easy black technique to solve this problem.
<?php /** * Created by PhpStorm. * User: zrj * Date: 17-10-20 * Time: 下午8:08 */ declare(strict_types=1);//开启强类型模式 class Person { public $name; public $age; public function __construct(string $name,int $age) { $this->name = $name; $this->age = $age; } } $jack = new Person('Jack', 18); echo print_r($jack, true); echo "<p>"; //对象转数组 $jack = json_decode(json_encode($jack), true); echo print_r($jack, true);
Let’s take a look at the results:
Person Object ( [name] => Jack [age] => 18 ) Array ( [name] => Jack [age] => 18 )
Idea analysis:
First process the object as json_encode json string.
# Perform json_decode processing on the converted json string.
json_decode(json_encode($obj),true);
##Summary:
Correct Get posture:
The object itself occupies a small amount of memory and can be used directly.
When the object itself occupies a large amount of memory (such as thousands of records forming a data set object), occupying twice the memory may cause the PHP Due to the memory limit, an exception occurred.
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