get_current_user
(PHP 4, PHP 5, PHP 7)
get_current_user — 获取当前 PHP 脚本所有者名称
说明
返回当前 PHP 脚本所有者名称。
返回值
以字符串返回用户名。
范例
Example #1 get_current_user() 例子
<?php
echo 'Current script owner: ' . get_current_user();
?> 以上例程的输出类似于：
Current script owner: SYSTEM
参见
- getmyuid() – 获取 PHP 脚本所有者的 UID
- getmygid() – 获取当前 PHP 脚本拥有者的 GID
- getmypid() – 获取 PHP 进程的 ID
- getmyinode() – 获取当前脚本的索引节点（inode）
- getlastmod() – 获取页面最后修改的时间
用户贡献的笔记
to get the username of the process owner (rather than the file owner), you can use:
<?php
$processUser = posix_getpwuid(posix_geteuid());
print $processUser['name'];
?>
On Centos, the Red Hat linux clone, this instruction gives the file's OWNER (the first parameter in instruction 'chown'). It does not reveal the file's GROUP.
get_current_user() does NOT reveal the current process' user's identity.
See: posix_getuid() - Return the real user ID of the current process
The information returned by get_current_user() seems to depend on the platform.
Using PHP 5.1.1 running as CGI with IIS 5.0 on Windows NT, get_current_user() returns the owner of the process running the script, *not* the owner of the script itself.
It's easy to test - create a file containing:
<?php
echo get_current_user();
?>
Then access it through the browser. I get: IUSR_MACHINE, the Internet Guest Account on Windows, which is certainly not the owner of the script.
If you have userdir enabled, get_current_user() returns the username of the user hosting the public_html. For example, http://example.com/~bobevans/somescript.php will return bobevans when calling get_current_user(). Since this only returns the file owner and not the actual user running the script, an alternative in Linux is:
<?php
$current_user = trim(shell_exec('whoami'));
?>
If you want to get the name of the user who executes the current PHP script, you can use
<?php
$username = getenv('USERNAME') ?: getenv('USER');
echo $username; // e.g. root or www-data
?>
