求高手将这些 C# 代码 转换成 PHP 代码

[黄粱一梦]

string[] sArray1 = System.Text.RegularExpressions.Regex.Split(Message, " ");
string command = sArray1[0];
int msgsArray1 = 1;
int adminmsgzu = 2;
string msg = "";
string adminmsg = "";
if (sArray1.Length > 1)
{
while (msgsArray1 < sArray1.Length)
{
msg += sArray1[msgsArray1];
msg += " ";
msgsArray1++;
}
if (sArray1.Length > 2)
{
while (adminmsgzu < sArray1.Length)
{
adminmsg += sArray1[adminmsgzu];
adminmsg += " ";
adminmsgzu++;
}
}
}