Question: after exporting to p.12 in MacOSX, can i run the following 3 step in Linux? Or i must get it done in the same machine where i export to P.12 before i upload to Linux server to use with my php script?

```
openssl pkcs12 -clcerts -nokeys -out apns-dev-cert.pem -in apns-dev-cert.p12
openssl pkcs12 -nocerts -out apns-dev-key.pem -in apns-dev-key.p12
openssl rsa -in apns-dev-key.pem -out apns-dev-key-noenc.pem

```

Answer: 
```
double dArray[][];

```

is Array-of-arrays while

```
double dArray[,];

```

is a two dimentional array.

it's easy enough to look them up.

[MSDN Reference link](http://msdn.microsoft.com/en-us/library/aa288453%28v=vs.71%29.aspx)
[See the official documentation](http://msdn.microsoft.com/en-us/library/2s05feca.aspx) (click on the *C#* tab).