php - Log in ios app from user date in sql database -


im trying create application user must sign in.

    <?php include ("./inc/connect.inc.php"); header('content-type: application/json'); if($_post) { $user = 'username'; $pass = 'password'; $sql = "select * player firstname='$user' , lastname='$pass'"; $usercount = mysql_num_rows($sql); //count number of rows returned     if ($usercount == 1) {     echo '{"success":1}';  } else {     echo '{"success":0,"error_message":"username and/or password invalid."}';  } }else {    echo '{"success":0,"error_message":"username and/or password invalid."}';  }  ?>

if change if $usercount = 1 part if($_post['username'] == 'steffgriff' && $_post['password'] == 'password'). , entered in on application steffgriff , password work. ideas why wont work count function. i'll put below code in app also

- (ibaction)signinclicked:(id)sender { nsinteger success = 0; @try {      if([[self.txtusername text] isequaltostring:@""] || [[self.txtpassword text] isequaltostring:@""] ) {          [self alertstatus:@"please enter email , password" :@"sign in failed!" :0];      } else {         nsstring *post =[[nsstring alloc] initwithformat:@"username=%@&password=%@",[self.txtusername text],[self.txtpassword text]];         nslog(@"postdata: %@",post);          nsurl *url=[nsurl urlwithstring:@"http://www.rugbycoachanalysis.com/jsonlogin.php"];          nsdata *postdata = [post datausingencoding:nsasciistringencoding allowlossyconversion:yes];          nsstring *postlength = [nsstring stringwithformat:@"%lu", (unsigned long)[postdata length]];          nsmutableurlrequest *request = [[nsmutableurlrequest alloc] init];         [request seturl:url];         [request sethttpmethod:@"post"];         [request setvalue:postlength forhttpheaderfield:@"content-length"];         [request setvalue:@"application/json" forhttpheaderfield:@"accept"];         [request setvalue:@"application/x-www-form-urlencoded" forhttpheaderfield:@"content-type"];         [request sethttpbody:postdata];          //[nsurlrequest setallowsanyhttpscertificate:yes forhost:[url host]];          nserror *error = [[nserror alloc] init];         nshttpurlresponse *response = nil;         nsdata *urldata=[nsurlconnection sendsynchronousrequest:request returningresponse:&response error:&error];          nslog(@"response code: %ld", (long)[response statuscode]);          if ([response statuscode] >= 200 && [response statuscode] < 300)         {             nsstring *responsedata = [[nsstring alloc]initwithdata:urldata encoding:nsutf8stringencoding];             nslog(@"response ==> %@", responsedata);              nserror *error = nil;             nsdictionary *jsondata = [nsjsonserialization                                       jsonobjectwithdata:urldata                                       options:nsjsonreadingmutablecontainers                                       error:&error];              success = [jsondata[@"success"] integervalue];             nslog(@"success: %ld",(long)success);              if(success == 1)             {                 nslog(@"login success");             } else {                  nsstring *error_msg = (nsstring *) jsondata[@"error_message"];                 [self alertstatus:error_msg :@"sign in failed!" :0];             }          } else {             //if (error) nslog(@"error: %@", error);             [self alertstatus:@"connection failed" :@"sign in failed!" :0];         }     } } @catch (nsexception * e) {     nslog(@"exception: %@", e);     [self alertstatus:@"sign in failed." :@"error!" :0]; } if (success) {     [self performseguewithidentifier:@"login_success" sender:self]; }

}

any ideas? thanks

instead of setting $user , $pass variables static strings, try retrieving them $_post array, this:

if($_post) {     $user = $_post['username'];     $pass = $_post['password'];     // rest of code

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