文件权限和 CHMOD：如何在文件创建时在 PHP 中设置 777？
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File Permissions and CHMOD: How to set 777 in PHP upon file creation?
提问by Sam
A question aboud file permissions when saving a file that when non existent, is created initially as new file.
保存文件时的文件权限问题，当文件不存在时，最初创建为新文件。
Now, this all goes well, and the saved file appear to have mode 644.
现在，一切顺利，保存的文件似乎具有 mode 644。
What to I have to change here, in order to make the files save as mode 777?
为了使文件另存为模式，我必须在这里更改什么777？
Thanks a thousand for any hints, clues or answers. The code that I think is relevant here I have included:
感谢您提供任何提示、线索或答案。我认为在这里相关的代码包括在内：
/* write to file */
self::writeFileContent($path, $value);
/* Write content to file
* @param string $file Save content to wich file
* @param string $content String that needs to be written to the file
* @return bool
*/
private function writeFileContent($file, $content){
$fp = fopen($file, 'w');
fwrite($fp, $content);
fclose($fp);
return true;
}
回答by thescientist
PHP has a built in function called bool chmod(string $filename, int $mode )
PHP 有一个内置函数叫做 bool chmod(string $filename, int $mode )
private function writeFileContent($file, $content){
$fp = fopen($file, 'w');
fwrite($fp, $content);
fclose($fp);
chmod($file, 0777); //changed to add the zero
return true;
}
回答by Michael Berkowski
回答by paxdiablo
If you want to change the permissions of an existing file, use chmod(change mode):
如果要更改现有文件的权限，请使用chmod（更改模式）：
$itWorked = chmod ("/yourdir/yourfile", 0777);
If you want all new files to have certain permissions, you need to look into setting your umode. This is a process setting that applies a default modification to standard modes.
如果您希望所有新文件都具有特定权限，则需要考虑设置umode. 这是将默认修改应用于标准模式的过程设置。
It is a subtractive one. By that, I mean a umodeof 022will give you a default permission of 755(777 - 022 = 755).
这是一个减法。我的意思是 a umodeof022会给你默认的权限755( 777 - 022 = 755)。
But you should think verycarefully about boththese options. Files created with that mode will be totally unprotected from changes.
但是您应该非常仔细地考虑这两个选项。使用该模式创建的文件将完全不受更改保护。
