php - 复制、重命名和 move_uploaded_file 之间的区别

php - Differences between copy, rename and move_uploaded_file(php - 复制、重命名和 move_uploaded_file 之间的区别)

问题描述

当我使用这些功能时有什么不同吗?为什么我应该使用一个而不是另一个...

Are there differences when I use that functions? Why should I use one instead of the other one...

推荐答案

• copy() 复制文件 - 您现在有 2 个文件，对于大文件，这可能需要很长时间
• rename() 更改文件名，这可能意味着在目录之间移动它.
• move_uploaded_file() 与rename() 基本相同，但只对通过PHP 上传机制上传的文件有效.这是一项安全功能，可防止用户欺骗您的脚本向他们显示与安全相关的数据.
• copy() copies the file - you now have 2 files, and for large files, this can take very long
• rename() changes the file's name, which can mean moving it between directories.
• move_uploaded_file() is basically the same as rename(), but it will only work on files that have been uploaded via PHP's upload mechanism. This is a security feature that prevents users from tricking your script into showing them security-relevant data.

以后，我建议自己在PHP手册中查找这些信息.

In the future, I suggest looking up such information in the PHP Manual yourself.

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