PHP 方法来查找网络服务器的临时路径？
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PHP way to find the web server's temp path?
提问by Petruza
When you handle an HTTP upload the file is uploaded to
当您处理 HTTP 上传文件时，文件被上传到
$_FILES['field_name']['tmp_name']
I know I could extract the temp path from there. But I was expecting maybe a $_SERVERparam that had the temp path (there's none) or other elegant way of knowing it.
我知道我可以从那里提取临时路径。但我期待可能有一个$_SERVER具有临时路径（没有）或其他优雅方式的参数。
Is there any?
有没有？
回答by Waleed Amjad
ini_get('upload_tmp_dir');
回答by Ionu? G. Stan
The function sys_get_temp_dir()returns the directory path used by PHP to store temporary files.
该函数sys_get_temp_dir()返回 PHP 用来存储临时文件的目录路径。
回答by Nate Glenn
Using XAMPP on my private computer, the ini_getmethod worked great, since php.ini specifies the value upload_tmp_dir. However, after uploading to my employer's server, this code didn't work because the value apparently didn't exist in his server's php.ini file. So, I used the system's temp dir as the default, and now the script works on my computer and on his server:
在我的私人计算机上使用 XAMPP，该ini_get方法效果很好，因为 php.ini 指定了值upload_tmp_dir。但是，上传到我雇主的服务器后，此代码不起作用，因为该值显然不存在于他的服务器的 php.ini 文件中。因此，我使用系统的临时目录作为默认目录，现在该脚本可以在我的计算机和他的服务器上运行：
$ini_val = ini_get('upload_tmp_dir');
$upload_tmp_dir = $ini_val ? $ini_val : sys_get_temp_dir();
回答by Kevin Andrews
I personally would use Sbm007's suggestion of:
我个人会使用 Sbm007 的建议：
ini_get('upload_tmp_dir');
ini_get('upload_tmp_dir');
As this takes into account apache per virtualhost settings like the upload_tmp_dir and open_basedir restrictions, where as :
因为这考虑了每个虚拟主机的 apache 设置，例如 upload_tmp_dir 和 open_basedir 限制，其中：
sys_get_temp_dir()
sys_get_temp_dir()
Would only return the OS's specific temp directory, and if inside a multi-hosted environment could give you a directory you can't write to.
只会返回操作系统的特定临时目录，如果在多主机环境中可以为您提供一个无法写入的目录。
