PHP POST脚本可用于其他站点，但不能用于iOS NSURLConnection

我已经尽了最大的努力去解决它，但是我找不到问题。这是密码

iOS：

PHP:

这将返回以下内容：

Username: <br>Password:

用户名：
密码：

---

几个小时来我一直在想它到底出了什么问题。任何帮助都将不胜感激。

这对我来说很好：

@interface Test : NSObject
-(void)userLogin;
@end

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        Test *test = [[Test alloc] init];
        [test userLogin];
    }
    return 0;
}

@implementation Test : NSObject
-(void)userLogin {
    NSString *user = @"test";
    NSString *pass = @"pass";

    NSString *post = [NSString stringWithFormat: @"user=%@&pass=%@", user, pass];
    NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];

    NSString *postLength = [NSString stringWithFormat:@"%lu", [postData length]];

    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
    [request setURL:[NSURL URLWithString:@"www.example.com/login.php"]];
    [request setHTTPMethod:@"POST"];
    [request setValue:postLength forHTTPHeaderField:@"Content-Length"];
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
    [request setHTTPBody:postData];

    NSURLConnection *conn = [[NSURLConnection alloc] initWithRequest:request delegate:self];

    sleep(50);

    NSLog(@"%@", conn);
}

@end

PHP:

---

检查Charles Proxy实际发送和接收的内容。谢谢，但它不起作用。PHP脚本只返回：

Array

我的脚本还是你的脚本？我在上面发布的内容正好返回了我粘贴的内容--您运行了吗？

Username: <br>Password:

@interface Test : NSObject
-(void)userLogin;
@end

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        Test *test = [[Test alloc] init];
        [test userLogin];
    }
    return 0;
}

@implementation Test : NSObject
-(void)userLogin {
    NSString *user = @"test";
    NSString *pass = @"pass";

    NSString *post = [NSString stringWithFormat: @"user=%@&pass=%@", user, pass];
    NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];

    NSString *postLength = [NSString stringWithFormat:@"%lu", [postData length]];

    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
    [request setURL:[NSURL URLWithString:@"www.example.com/login.php"]];
    [request setHTTPMethod:@"POST"];
    [request setValue:postLength forHTTPHeaderField:@"Content-Length"];
    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
    [request setHTTPBody:postData];

    NSURLConnection *conn = [[NSURLConnection alloc] initWithRequest:request delegate:self];

    sleep(50);

    NSLog(@"%@", conn);
}

@end

<?php
  file_put_contents('/tmp/test', print_r($_POST, true));

# cat /tmp/test
Array
(
  [user] => test
  [pass] => pass
)