JSON
json_encode 和 json_decode
这两个函数的具体用法 网上有很多相关的文章 ,本文主要介绍 用json_encode 时中文无法转换的解决方案,本文假设文件所用的编码为gb2312;
先写出所需的数组
$json = array ( 0 => array ( 'id' => '13', 'name' => '乒乓球', ), 1 => array ( 'id' => '17', 'name' => '篮球', ) ) ?> |
如果直接用PHP json_encode函数
echo json_encode($json); ?> |
结果为:
[{"id":"13","name":null} ,{"id":"13","name":null}] ?> |
可以看到汉字没有被转义都为null,这是因为json仅仅转义encoding编码(类似于:%B0%AE),故上面语句应该先转换编码
foreach ($ajax as $key=>$val) { $ajax[$key]['name'] = urlencode($val['name']); } echo json_encode($json); ?> |
客户端js代码
用上面的代码js会报错 说编码不符合标准
原因是因为js 中decodeURI 仅仅支持utf8 转码。所以 ,PHP json_encode函数的代码应该为下面的代码
foreach ($ajax as $key=>$val) { $ajax[$key]['name'] = urlencode(iconv('gb2312', 'utf-8',$val['name'])); } echo json_encode($json); ?> |
以上就是使用PHP json_encode函数在实际操作中出现问题的解决方法。

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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