经常看到一些配置文件里面存放的是一些类似带有格式的变量名称和值,其实就是一个序列化的过程,在需要用到这些数据库的时候会进行一个反序列化过程,就是将这个字符串再还原成他原来的数据结构。下面说说php 如何进行数据的序列化和反序列化的。
php 将数据序列化和反序列化其实就用到两个函数,serialize 和unserialize。
serialize 将数组格式化成有序的字符串
unserialize 将数组还原成数组
例如:
$user=array('Moe','Larry','Curly'); $user=serialize($stooges); echo '<pre class="brush:php;toolbar:false">'; print_r($user); echo '<br />'; print_r(unserialize($user));
结果:
a:3:{i:0;s:3:"Moe";i:1;s:5:"Larry";i:2;s:5:"Curly";} Array ( [0] => Moe [1] => Larry [2] => Curly )
注意当数组值包含如双引号、单引号、冒号或中文等字符时,它们被反序列化后,可能会出现乱码或格式被打乱的问题。
解决乱码问题可以使用base64_encode 和base64_decode 两个函数。
例如:
$user=array('Moe','Larry','Curly'); $user=base64_encode(serialize($user)); $user=unserialize(base64_decode($user));
这样就不会出现乱码类的问题了,但是base64 编码却增加了存储字符串的长度。
由以上我们可以总结出一个自己的序列化和反序列化的函数来,如下:
function my_serialize($obj_array){ return base64_encode(gzcompress(serialize($obj_array))); } //反序列化 function my_unserialize($str){ return unserialize(gzuncompress(base64_decode($str))); }
以上就是告诉大家php是如何进行数据的序列化和反序列化的,并且在遇到反序列化之后,出现乱码或格式被打乱的原因和解决措施,希望本文的介绍对大家的学习有所帮助。

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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