上传到mysql服务器无法正常工作

我需要将数据添加到我的mysql数据库中。但是下面的实际数据库中没有添加任何内容的是我的xcode，下面是我的php代码。 似乎无法理解为什么它不起作用？ 任何建议/你能看到错误吗？

-(void) postMessage:(NSString*) teamid withPlayerid:(NSString *) playerid withFixtureid:(NSString *) fixtureid withEventid:(NSString *) eventid withHalfid:(NSString *) halfid{ //check isnt receiving two anit paramters if(teamid !=nil && playerid !=nil && fixtureid !=nil && eventid !=nil && halfid !=nil){ NSMutableString *postString = [NSMutableString stringWithString:kPostURL]; [postString appendString:[NSString stringWithFormat:@"?%@=%@",kTeamid, teamid]]; //makes kname equal to name [postString appendString:[NSString stringWithFormat:@"&%@=%@", kPlayerid , playerid]]; [postString appendString:[NSString stringWithFormat:@"?%@=%@",kFixtureid, fixtureid]]; //makes kname equal to name [postString appendString:[NSString stringWithFormat:@"&%@=%@", kEventid , eventid]]; [postString appendString:[NSString stringWithFormat:@"?%@=%@",kHalfid, halfid]]; //makes kname equal to name [postString setString:[postString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]; NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:postString]]; [request setHTTPMethod:@"POST"]; postConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:YES]; NSLog(@"%@",teamid); NSLog(@"%@",KTeamid); } } -(IBAction)prop1Button:(id)sender{ NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults]; // getting an NSString NSString *myString = [prefs stringForKey:@"1 - Prop"]; _textField3.text = myString; [self postMessage: self.textField2.text withPlayerid:self.textField3.text withFixtureid:self.textField3.text withEventid:self.textField3.text withHalfid:self.textField3.text]; _textField2.text = nil; _textField3.text = nil; dropGoalCounter ++; [[NSNotificationCenter defaultCenter] postNotificationName:@"DoUpdateLabel" object:nil userInfo:nil]; [self dismissViewControllerAnimated:YES completion:nil]; } 

这是我插入数据库的php代码

编辑！！！ 现在，这会在数据库中输入一个新条目，但由于NSString，所有字段都是空白的，而在数据库中，列是整数。 然而，当我改变PHP到这个

 $teamid = (int)$_POST["teamid"] $playerid = (int)$_POST["playerid"]; $fixtureid = (int)$_POST["fixtureid"]; $eventid = (int)$_POST["eventid"]; $half = (int)$_POST["halfid"]; 

它根本不会向数据库添加条目。 有什么建议么？

Answer 1

发现问题：

Xcode中：

 [request setHTTPMethod:@"POST"]; ^^^^^ 

PHP：

 $teamid = $_GET["teamid"]; ^^^----hmmmmm. not $_POST 

除此之外，您还容易受到SQL注入攻击

Answer 2

$ result = mysqli_query（$ connection，$ query）;

 echo $query; 

我看起来像这样，工作没有错误

Answer 3

S [postString appendString：[NSString stringWithFormat：@“？％@ =％@”，kHalfid，halfid]]; 有一个 ？ 代替 ＆。