将图片从iOS应用发送到php脚本到mySQL DB

Question

I've a problem: I want to send a picture from my iOS app to a php script to insert this image in a mysql db. The field in mysql db for the image is LONGBLOB. The image that is sending is _photoImageView.image The method I created in Xcode is as follows:

NSData *dataForImage = UIImagePNGRepresentation(_photoImageView.image);


    NSMutableString *strURL = [NSMutableString stringWithFormat:@"http://localhost/myfff/join.php?username=%@&password=%@&photo=%@",_txtUsername.text,_txtPassword.text, dataForImage];
[strURL setString:[strURL stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:strURL]];
[request setHTTPMethod:@"POST"];
postConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:YES];

In the php script in the affected part, I do this:

$data = addslashes(fread(fopen($_FILES[photo], "rb"))); $query = "INSERT INTO mytb VALUES (' ','$username','$password'','$data')";

The insertion does not occur .. where am I wrong? Help me please!

Answer 1

If you are getting other posted data on your php script ie username & password then the issue is that you will not get data in $_FILES array since the Xcode you share is not uploading the data as form (multipart/form-data) instead it's posting the data (i believe), so i think you will be getting raw image data in $_POST['photo'] and query should be:

$data = $_POST['photo'];

$query = "INSERT INTO mytb VALUES (' ','$username','$password'','$data')";

Even if you get the photo in $_FILES then still your using wrong thing to fread it should be:

$data = addslashes(fread(fopen($_FILES['photo']['tmp_name'], "rb")));