php – Base64 over HTTP POST丢失数据(Objective-C)

我输出Base64到XCodes控制台，复制并粘贴它，它的工作完美。虽然在数据库(MongoDB，纯文本文件等)中存储的Base64总是在另一端出现损坏。

工作版本(从XCode复制并粘贴)：http://dontpanicrabbit.com/api/working.php
破碎版本(从MongoDB数据库)：http://dontpanicrabbit.com/api/grabimage.php

如果您查看源代码，您会注意到它们是一样的，但是在破坏的版本中添加了空格。

我使用的Objective-C代码是：

MyImage.image = [info objectForKey:UIImagePickerControllerOriginalImage];

    NSData *imageData = UIImageJPEGRepresentation(MyImage.image,0);

    [Base64 initialize];
    NSString *encoded = [Base64 encode:imageData];

    NSString *urlPOST = encoded;
    //NSLog(@"%@",encoded);

    NSString *varyingString1 = @"picture=";
    NSString *varyingString2 = urlPOST;
    NSString *post = [NSString stringWithFormat: @"%@%@",varyingString1,varyingString2];
    NSLog(@"%@",post);
    //NSString *post = @"image=%@",urlPOST;
    NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];

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

    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
    [request setURL:[NSURL URLWithString:@"url/api/insertimage.php"]];
    [request setHTTPMethod:@"POST"];
    [request setHTTPBody:postData];
    NSData *returnData = [NSURLConnection sendSynchronousRequest: request returningResponse: nil error: nil];
    NSString *strResult = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];

PHP – > MongoDB存储

<?php
    try {
      // open connection to MongoDB server
      $conn = new Mongo('localhost');

      // access database
      $db = $conn->dablia;

      // access collection
      $collection = $db->images;

      // insert a new document
      $item = array(
        'picture' => $_POST['picture']
      );
      $collection->insert($item);
      echo 'Inserted document with ID: ' . $item['_id'];

      // disconnect from server
      $conn->close();
    } catch (MongoConnectionException $e) {
      die('Error connecting to MongoDB server');
    } catch (MongoException $e) {
      die('Error: ' . $e->getMessage());
    }
?>

输出代码：

<?php
try {
  // open connection to MongoDB server
  $conn = new Mongo('localhost');

  // access database
  $db = $conn->dablia;

  // access collection
  $collection = $db->images;

  // execute query
  // retrieve all documents
  $cursor = $collection->find();

  // iterate through the result set
  // print each document
  foreach ($cursor as $obj) {
    echo '<img src="data:image/jpeg;base64,'.trim($obj['picture']).'">';
  }

  // disconnect from server
  $conn->close();
} catch (MongoConnectionException $e) {
  die('Error connecting to MongoDB server');
} catch (MongoException $e) {
  die('Error: ' . $e->getMessage());
}
?>

我不知道为什么我似乎在POST上腐蚀？