php exec ('ps -aeo' ) 不返回所有进程

Question

我正在尝试构建一个简单的 php 脚本来返回一个 JSON 格式的正在运行的进程列表。

这个脚本当然是由apache执行的。

除了一个小细节，我什么都想通了。当脚本由 apache 执行时，该命令仅返回由“apache”用户拥有的正在运行的进程列表。

有什么办法吗？

exec('ps -aeo',$output);
//then some code to parse the $output and return a JSON string

输出:

"processes": [
    {
      "cpu": "0.0",
      "pid": "23698",
      "user": "apache",
      "command": "/usr/sbin/httpd"
    },
    {
      "cpu": "0.0",
      "pid": "23486",
      "user": "apache",
      "command": "/usr/sbin/httpd"
    },
    {
      "cpu": "0.0",
      "pid": "23485",
      "user": "apache",
      "command": "/usr/sbin/httpd"
    },
    {
      "cpu": "0.0",
      "pid": "23484",
      "user": "apache",
      "command": "/usr/sbin/httpd"
    },
    {
      "cpu": "0.0",
      "pid": "23483",
      "user": "apache",
      "command": "/usr/sbin/httpd"
    },
    {
      "cpu": "0.0",
      "pid": "23482",
      "user": "apache",
      "command": "/usr/sbin/httpd"
    },
    {
      "cpu": "0.0",
      "pid": "23481",
      "user": "apache",
      "command": "/usr/sbin/httpd"
    },
    {
      "cpu": "0.0",
      "pid": "23480",
      "user": "apache",
      "command": "/usr/sbin/httpd"
    },
    {
      "cpu": "0.0",
      "pid": "23479",
      "user": "apache",
      "command": "/usr/sbin/httpd"
    },
    {
      "cpu": "0.0",
      "pid": "23478",
      "user": "apache",
      "command": "/usr/sbin/httpd"
    },
    {
      "cpu": "0.0",
      "pid": "1008",
      "user": "root",
      "command": "/usr/sbin/httpd"
    },
    {
      "cpu": "0.0",
      "pid": "959",
      "user": "root",
      "command": "/usr/sbin/abrtd"
    }
  ]

Answer 1

我遇到了同样的问题，这个解决了。 (假设你有root权限)

# chcon -t unconfined_exec_t /sbin/httpd

see detailed document here

如果服务器被不信任的用户共享，这可能不是一个好主意