Home Backend Development PHP Tutorial json_encode 函数中文被编码成 null的解决办法

json_encode 函数中文被编码成 null的解决办法

Jun 20, 2016 pm 12:32 PM

<?php$arr = array(‘Name’=>’希亚’,‘Age’=>20);$jsonencode = json_encode($arr);echo $jsonencode;?>
Copy after login
程序运行结果如下:

<?php{“Name”:null,”Age”:20}json_encode 函数中中文被编码成 null 了,Google 了一下,很简单,为了与前端紧密结合,Json 只支持 utf-8 编码,我认为是前端的 JavaScript 也是 utf-8 的原因。[php] view plaincopyprint?<?php$array = array(‘title’=>iconv(‘gb2312′,’utf-8′,’这里是中文标题’),‘body’=>’abcd…’);echo json_encode($array);?>
Copy after login
这个程序的运行结果为:

{“title”:”\u8fd9\u91cc\u662f\u4e2d\u6587\u6807\u9898″,”body”:”abcd…”}

数 组中所有中文在json_encode之后都不见了或者出现\u2353等。解决方法是用urlencode()函数处理以下,在json_encode 之前,把所有数组内所有内容都用urlencode()处理一下,然用json_encode()转换成json字符串,最后再用urldecode() 将编码过的中文转回来。

<?php/**************************************************************** 使用特定function对数组中所有元素做处理* @param string &$array 要处理的字符串* @param string $function 要执行的函数* @return boolean $apply_to_keys_also 是否也应用到key上* @access public**************************************************************/function arrayRecursive(&$array, $function, $apply_to_keys_also = false){static $recursive_counter = 0;if (++$recursive_counter > 1000) {die(‘possible deep recursion attack’);}foreach ($array as $key => $value) {if (is_array($value)) {arrayRecursive($array[$key], $function, $apply_to_keys_also);} else {$array[$key] = $function($value);}if ($apply_to_keys_also && is_string($key)) {$new_key = $function($key);if ($new_key != $key) {$array[$new_key] = $array[$key];unset($array[$key]);}}}$recursive_counter–;}/**************************************************************** 将数组转换为JSON字符串(兼容中文)* @param array $array 要转换的数组* @return string 转换得到的json字符串* @access public**************************************************************/function JSON($array) {arrayRecursive($array, ‘urlencode’, true);$json = json_encode($array);return urldecode($json);}$array = array(‘Name’=>’希亚’,‘Age’=>20);echo JSON($array);?>
Copy after login
这次成功了,运行结果如下:

{“Name”:”希亚”,”Age”:”20″}

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Apr 05, 2025 am 12:04 AM

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

How does session hijacking work and how can you mitigate it in PHP? How does session hijacking work and how can you mitigate it in PHP? Apr 06, 2025 am 12:02 AM

Session hijacking can be achieved through the following steps: 1. Obtain the session ID, 2. Use the session ID, 3. Keep the session active. The methods to prevent session hijacking in PHP include: 1. Use the session_regenerate_id() function to regenerate the session ID, 2. Store session data through the database, 3. Ensure that all session data is transmitted through HTTPS.

Describe the SOLID principles and how they apply to PHP development. Describe the SOLID principles and how they apply to PHP development. Apr 03, 2025 am 12:04 AM

The application of SOLID principle in PHP development includes: 1. Single responsibility principle (SRP): Each class is responsible for only one function. 2. Open and close principle (OCP): Changes are achieved through extension rather than modification. 3. Lisch's Substitution Principle (LSP): Subclasses can replace base classes without affecting program accuracy. 4. Interface isolation principle (ISP): Use fine-grained interfaces to avoid dependencies and unused methods. 5. Dependency inversion principle (DIP): High and low-level modules rely on abstraction and are implemented through dependency injection.

How to debug CLI mode in PHPStorm? How to debug CLI mode in PHPStorm? Apr 01, 2025 pm 02:57 PM

How to debug CLI mode in PHPStorm? When developing with PHPStorm, sometimes we need to debug PHP in command line interface (CLI) mode...

Framework Security Features: Protecting against vulnerabilities. Framework Security Features: Protecting against vulnerabilities. Mar 28, 2025 pm 05:11 PM

Article discusses essential security features in frameworks to protect against vulnerabilities, including input validation, authentication, and regular updates.

How to automatically set permissions of unixsocket after system restart? How to automatically set permissions of unixsocket after system restart? Mar 31, 2025 pm 11:54 PM

How to automatically set the permissions of unixsocket after the system restarts. Every time the system restarts, we need to execute the following command to modify the permissions of unixsocket: sudo...

Explain late static binding in PHP (static::). Explain late static binding in PHP (static::). Apr 03, 2025 am 12:04 AM

Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.

See all articles