C＃PHP-CGI - 调用phpinfo崩溃了webserver

Question

I created a simple and small webserver for only handling GET requests. I also wanted to add PHP support and also managed it. But there is one problem:

Everytime I try to call phpinfo() inside a .php file my server stops at "WaitForExit" Process.

 class FastPHP
    {
        private string _phpPath = @"C:\\Program Files (x86)\\PHP\\php-cgi.exe";
        Process p;

        public FastPHP(string filename)
        {
            p = new Process();
            p.StartInfo.FileName = this._phpPath;
            p.StartInfo.CreateNoWindow = true;
            p.StartInfo.Arguments = "-q \""+filename+"\"";
            p.StartInfo.RedirectStandardOutput = true;
            p.StartInfo.UseShellExecute = false;
        }

        public string getPHPOutput()
        {
            p.Start();
            p.WaitForExit();
            string sOutput = p.StandardOutput.ReadToEnd();
            p.Close();

            return sOutput;
        }
    }

my PHP.ini settings should be fine, I adapted everything for fastcgi use. Any Ideas how to fix this problem?

Answer 1

The problem is that the StandardOutput has a certain buffer size. If this buffer is full then any write() to stdout will block. Now if you call p.WaitForExit() you are waiting indefinitely.

The solution is to first read everything from the StandardOutput and then call WaitForExit.