How to convert JS objects to PHP arrays and object arrays

JavaScript (JS) and PHP are both common programming languages, and data transmission and data type conversion between them are often issues that we need to pay attention to during the programming process. Among them, the conversion between Object in JS and Array in PHP is a relatively common situation. This article will introduce how to convert JS objects into PHP arrays and object arrays.

1. Basic concepts of JS objects and PHP arrays

In JS, an object (Object) is a collection of unordered key-value pairs, where each key is a string type attributes, and each value can be any type of data. Objects can be created through "{}":

var person = {
    name: 'Bob',
    age: 18,
    gender: 'male'
};

In PHP, an array (Array) is a collection of ordered lists. Each element in the array has a unique key (the key can be string or number), and this key and the corresponding value form a key-value pair. PHP arrays can be created through "array()":

$person = array(
    'name' => 'Bob',
    'age' => 18,
    'gender' => 'male'
);

2. Convert JS objects to PHP arrays

To convert JS objects into PHP arrays, you first need to convert the JS objects It is string type data, and then converted into a PHP array through certain processing methods. The specific implementation method is as follows:

1. Use JSON.stringify() to convert the JS object into a string in JSON format.

var person = {
    name: 'Bob',
    age: 18,
    gender: 'male'
};

var str_person = JSON.stringify(person);

2. Use json_decode() to convert the JSON format string into a PHP object, and then use get_object_vars() to convert the object into an array.

$php_person = json_decode($str_person);

$php_array = get_object_vars($php_person);

3. The final $php_array is an associative array, and the value of the key-value pair can be obtained through loop traversal.

foreach($php_array as $key => $value){
    echo $key . ': ' . $value . "<br>";
}

3. Convert JS objects to PHP object arrays

Converting JS objects to PHP object arrays is similar to converting JS objects to PHP arrays. You only need to perform certain operations on the converted results. can be processed. The specific implementation method is as follows:

1. Use JSON.stringify() to convert the JS object into a string in JSON format.

var persons = [
    {name:'Bob',age:18},
    {name:'Tom',age:20},
    {name:'Jerry',age:22}
];

var str_persons = JSON.stringify(persons);

2. Use json_decode() to convert the JSON format string into a PHP associative array, and then use loop traversal to convert it into a PHP object array.

$php_persons = json_decode($str_persons,true);

$php_obj_persons = array();

foreach($php_persons as $person){
    $php_obj_person = (object)$person; 
    array_push($php_obj_persons,$php_obj_person);
}

3. The final $php_obj_persons is an array of PHP objects, and the attribute values ​​of the objects can be obtained through loop traversal.

foreach($php_obj_persons as $person){
    echo 'Name: ' . $person->name . ', Age: ' . $person->age . "<br>";
}

The above code examples are for reference only, and the specific implementation process and methods can be adjusted and optimized according to the actual situation.

Summary

This article introduces how to convert JS objects into PHP arrays and object arrays, which involves JSON format strings, json_decode() function, get_object_vars() function , loop traversal and other techniques. In the actual development process, choosing the appropriate method for processing as needed can improve the efficiency and maintainability of the code.

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