PHP:Socket binary message to c-server

[scallst@gmail.com]

Hi!
I'm new in PHP and I have a problem on sending a socket message to
c-server. I am able to connect using socket_connect but my problem is I
have to setup TCP message in a special format as my c-server is
expacting it in as in c-Structure byte order with binary data.

For example: at server:
typedef struct
{ unsigned char msg;
unsigned char start;
unsigned char nCont;
unsigned char nError;
unsigned char nFunction;
unsigned short nRecLen;
unsigned char nData[900];
unsinged char msg1;
unsigned char end ;
} MyMsg;


where nData coulde be in format like:
struct {
int myid;
char Name[100];
char Name2[100];
int Type;
int Working;
int Alarm;
int Auto;
char num[20];
}


How should I setup my string in PHP that can fit in c-byte order like
unsinged short-2 byte, int-4-byte binary number and then character
string.



Thank you in advance.
Scall

[Chung Leong]

Re: PHP:Socket binary message to c-server

See http://fi.php.net/pack/

[scallst@gmail.com]

Re: PHP:Socket binary message to c-server

Hi! Chung,

Thank you for your quick reply. I think this will help me.

Thank you,
Scall