PHP简略递归遍历所有目录-PHP Tutorial-php.cn

Home

Backend Development

PHP Tutorial

PHP简略递归遍历所有目录

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jun 13, 2016 pm 12:15 PM

dirdirectoryquotroot

PHP简单递归遍历所有目录

博主热衷各种互联网技术,常啰嗦,时常伴有强迫症，常更新，觉得文章对你有帮助的可以关注我。转载请注明"深蓝的镰刀"

function list_dir($root){    $dirs = scandir($root);    foreach($dirs as $dir){        if(is_dir($root.DIRECTORY_SEPARATOR.$dir) && (in_array($dir,array('.','..')) != '.')){            echo $root.DIRECTORY_SEPARATOR.$dir.PHP_EOL;            list_dir($root.DIRECTORY_SEPARATOR.$dir);        }    }}list_dir('.');

值得注意的几点：

1.递归一定要有跳出的条件，否则就是无限循环

2.使用常量DIRECTORY_SEPARATOR替代 "/"可以兼容linux和windows的不同目录分隔符

3.使用is_array($dir,array('.','..')) != '.'，而不是substr($dir,0,1) != '.' 是因为linux里面很多隐藏目录都是以"."开头的

Statement

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

How do you create and use an interface in PHP?Apr 30, 2025 pm 03:40 PM

The article explains how to create, implement, and use interfaces in PHP, focusing on their benefits for code organization and maintainability.

What is the difference between crypt() and password_hash()?Apr 30, 2025 pm 03:39 PM

The article discusses the differences between crypt() and password_hash() in PHP for password hashing, focusing on their implementation, security, and suitability for modern web applications.

How can you prevent Cross-Site Scripting (XSS) in PHP?Apr 30, 2025 pm 03:38 PM

Article discusses preventing Cross-Site Scripting (XSS) in PHP through input validation, output encoding, and using tools like OWASP ESAPI and HTML Purifier.

What is autoloading in PHP?Apr 30, 2025 pm 03:37 PM

Autoloading in PHP automatically loads class files when needed, improving performance by reducing memory use and enhancing code organization. Best practices include using PSR-4 and organizing code effectively.

What are PHP streams?Apr 30, 2025 pm 03:36 PM

PHP streams unify handling of resources like files, network sockets, and compression formats via a consistent API, abstracting complexity and enhancing code flexibility and efficiency.

What is the maximum size of a file that can be uploaded using PHP ?Apr 30, 2025 pm 03:35 PM

The article discusses managing file upload sizes in PHP, focusing on the default limit of 2MB and how to increase it by modifying php.ini settings.

What is Nullable types in PHP ?Apr 30, 2025 pm 03:34 PM

The article discusses nullable types in PHP, introduced in PHP 7.1, allowing variables or parameters to be either a specified type or null. It highlights benefits like improved readability, type safety, and explicit intent, and explains how to declar

What is the difference between the unset() and unlink() functions ?Apr 30, 2025 pm 03:33 PM

The article discusses the differences between unset() and unlink() functions in programming, focusing on their purposes and use cases. Unset() removes variables from memory, while unlink() deletes files from the filesystem. Both are crucial for effec

See all articles