因项目需求,需要将asp后缀的修改成php,因懒于一个个修改。又觉得php跟Qt一样都是高级语言了,一般高级语言都有提供对获得的内容进行增删改查的函数。经过一番资料查找与代码测试,总结出了PHP修改指定文件后缀的方法,分享给大家。
目标:将当前目录下的asp后缀改成php,而不影响其它“后缀格式的文件”,而且只是针对“当前文件夹”,对当前文件夹内包含的文件夹的文件不进行修改。
具体功能代码如下:
<?php function foreachDir($dirname) { if(!is_dir($dirname)) { echo "{$dirname} not effective dir"; exit(); } $handle=opendir($dirname); //打开目录 while (($file = readdir($handle))!==false) //读取目录 { if($file!="." && $file!='..') { if(is_dir($dirname.$file)) { echo $dirname.$file."<br/>"; //foreachDir($dirname.$file); //如果注释号去掉,将会递归修改文件夹内的文件夹文件 } else { echo "--".$dirname."/".$file."<br/>"; $temp = substr($file, strrpos($file, '.')+1); //获取后缀格式 if ($temp == "asp") { $pos = strripos($file,'.'); //获取到文件名的位置 $filename = substr($file,0,$pos); //获取文件名 rename($dirname.'/'.$file,$dirname.'/'.$filename.'.php'); //替换为php后缀格式。 } } } } } foreachDir('../traverseMendFilename'); ?>
感兴趣的朋友可以测试运行并扩展完善本文实例,相信会对大家PHP程序设计的学习有所帮助。
另外:附上获取文件扩展名的四种方法供大家参考。

PHP remains a powerful and widely used tool in modern programming, especially in the field of web development. 1) PHP is easy to use and seamlessly integrated with databases, and is the first choice for many developers. 2) It supports dynamic content generation and object-oriented programming, suitable for quickly creating and maintaining websites. 3) PHP's performance can be improved by caching and optimizing database queries, and its extensive community and rich ecosystem make it still important in today's technology stack.

In PHP, weak references are implemented through the WeakReference class and will not prevent the garbage collector from reclaiming objects. Weak references are suitable for scenarios such as caching systems and event listeners. It should be noted that it cannot guarantee the survival of objects and that garbage collection may be delayed.

The \_\_invoke method allows objects to be called like functions. 1. Define the \_\_invoke method so that the object can be called. 2. When using the $obj(...) syntax, PHP will execute the \_\_invoke method. 3. Suitable for scenarios such as logging and calculator, improving code flexibility and readability.

Fibers was introduced in PHP8.1, improving concurrent processing capabilities. 1) Fibers is a lightweight concurrency model similar to coroutines. 2) They allow developers to manually control the execution flow of tasks and are suitable for handling I/O-intensive tasks. 3) Using Fibers can write more efficient and responsive code.

The PHP community provides rich resources and support to help developers grow. 1) Resources include official documentation, tutorials, blogs and open source projects such as Laravel and Symfony. 2) Support can be obtained through StackOverflow, Reddit and Slack channels. 3) Development trends can be learned by following RFC. 4) Integration into the community can be achieved through active participation, contribution to code and learning sharing.

PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.

PHP is not dying, but constantly adapting and evolving. 1) PHP has undergone multiple version iterations since 1994 to adapt to new technology trends. 2) It is currently widely used in e-commerce, content management systems and other fields. 3) PHP8 introduces JIT compiler and other functions to improve performance and modernization. 4) Use OPcache and follow PSR-12 standards to optimize performance and code quality.

The future of PHP will be achieved by adapting to new technology trends and introducing innovative features: 1) Adapting to cloud computing, containerization and microservice architectures, supporting Docker and Kubernetes; 2) introducing JIT compilers and enumeration types to improve performance and data processing efficiency; 3) Continuously optimize performance and promote best practices.


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