Use PHP and ACCESS to write chat rooms (1)

The INDEX. PHP code is as follows! & Lt ;? Php (as the mainstream development language) functiondelquot (& #36; sStr) & #123; & nbsp; & #36; sstr_replace (chr (124), & #36; sStr); & nbsp; & #36; s INDEX. PHP
The code is as follows!

Function delquot ($ sStr ){
$ S = str_replace (chr (124), "", $ sStr );
$ S = str_replace (chr (39), "", $ s );
$ S = str_replace (chr (34), "", $ s );
Return $ s;
}

If ($ cmdYes = "inbound "){
$ SUserName = htmlspecialchars (trim (delquot ($ sUserName )));
If ($ sUserName = "superldz" & $ sPass = "superldz "){
$ SUserID = 1;
Include ("chtmain. php (as the mainstream development language) 3 ");
Exit ();
}
Else {
$ ConnID = @ odbc_connect ("jtfcht", "admin ","");
If ($ ConnID ){
$ Result = @ odbc_exec ($ ConnID, "SELECT UserID, UserName, PassWord, RoomID, Sex FROM User WHERE UserName =". $ sUserName ."");
If (@ odbc_fetch_into ($ result, 0, & $ rArr )){
$ SUserID = $ rArr [0];
If ($ rArr [2] ==$ sPass ){
If ($ rArr [3] = 0 ){
@ Odbc_exec ($ ConnID, "UPDATE User SET RoomID = 1, LstDate = ". date ("Y. m. d "). ", ToID = 0, ToName = everybody, Secret = False, FirstTime = True, LstTime = ". time (). "WHERE UserID = ". $ sUserID );
If ($ rArr [4])
@ Odbc_exec ($ ConnID, "insert into ChtCont (sIDFrom, sNameFrom, sIPFrom, sIDTo, sNameTo, sTime, sCont, bSecret, RoomID) VALUES (". $ rArr [0]. ",". $ rArr [1]. ",". getenv ("REMOTE_ADDR "). ", 0, everybody ,". date ("H: I: s "). ", [system message] welcome ". $ rArr [1]. "Come to this chat room, False, 1 )");
Else
@ Odbc_exec ($ ConnID, "insert into ChtCont (sIDFrom, sNameFrom, sIPFrom, sIDTo, sNameTo, sTime, sCont, bSecret, RoomID) VALUES (". $ rArr [0]. ",". $ rArr [1]. ",". getenv ("REMOTE_ADDR "). ", 0, everybody ,". date ("H: I: s "). ", [system message] welcome ". $ rArr [1]. "Come to this chat room, False, 1 )");