我正在使用 php 从 iphone 应用程序向服务器发送数据,但是当我发布数据返回时,数据没有插入到数据库中,它只是在 echo 中发送 []。
我的 iPhone 代码
-(void)submitSurveyAnswers{
NSString*survey_question_response_id="1";
NSString*survey_id=@"1";
NSString *question_id =@"1";
NSString *survey_response_answer_id =@"1";
NSString *post =[[NSString alloc] initWithFormat:@"survey_question_response_id=%@&survey_id=%@&question_id=%@&survey_response_answer_id=%@",survey_question_response_id,survey_id,question_id,survey_response_answer_id];
NSLog(post);
NSURL *url=[NSURL URLWithString:@"http://myserver-solutions.com/app/surveyAnswer.php?"];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
[request setURL:url];
[request setHTTPMethod:@"POST"];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody:postData];
NSError *error;
NSURLResponse *response;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *data=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSLog(@"%@",data);
}
这是我的php代码
<?php
$host = "";
$user = "";
$pass = "";
$database = "";
$linkID = mysql_connect($host, $user, $pass) or die("Could not connect to host.");
mysql_select_db($database, $linkID) or die("Could not find database.");
$survey_question_response_id=$_POST['survey_question_response_id'];
$survey_id=$_POST['survey_id'];
$question_id=$_POST['question_id'];
$survey_response_answer_id=$_POST['survey_response_answer_id'];
echo($survey_question_response_id);
$query=("INSERT INTO survey_question_responses
(survey_question_response_id,survey_id,question_id,survey_response_answer_id)
VALUES ('$survey_question_response_id', '$survey_id','$question_id','$survey_response_answer_id')");
mysql_query($query,$con);
printf("Records inserted: %d\n", mysql_affected_rows());
echo($survey_id)
?>