Image is not uploaded in PHP using Swift - php

Question

I am trying to use Google Vision API and upload an image using their API to get analysis. I am using this php code:
<?php
include("./includes/common.php");
include_once("creds.php"); // Get $api_key
$cvurl = "https://vision.googleapis.com/v1/images:annotate?key=" . $api_key;
$type = "LABEL_DETECTION";
//echo "Item is: " . $item;
//Did they upload a file...
$item = $_GET[item];
if($_FILES['photo']['name'])
{
}else{
echo "you did not upload image".
}
It always show "you did not upload image". And here's my Swift function where I upload the image:
func UploadRequest(img: UIImage, item: String)
{
let url = NSURL(string: "http://myurlhere")
let request = NSMutableURLRequest(URL: url!)
request.HTTPMethod = "POST"
let boundary = generateBoundaryString()
//define the multipart request type
request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
let image_data = UIImagePNGRepresentation(img)
if(image_data == nil)
{
return
}
let body = NSMutableData()
let fname = "image.png"
let mimetype = "image/png"
//define the data post parameter
body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Disposition:form-data; name=\"test\"\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("hi\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Disposition:form-data; name=\"file\"; filename=\"\(fname)\"\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Type: \(mimetype)\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData(image_data!)
body.appendData("\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("--\(boundary)--\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
request.HTTPBody = body
let session = NSURLSession.sharedSession()
let task = session.dataTaskWithRequest(request) {
(
let data, let response, let error) in
guard let _:NSData = data, let _:NSURLResponse = response where error == nil else {
//EZLoadingActivity.hide(success: false, animated: true)
print("error")
return
}
let dataString = NSString(data: data!, encoding: NSUTF8StringEncoding)
print(dataString)
//EZLoadingActivity.hide(success: true, animated: true)
self.dismissViewControllerAnimated(true, completion: nil)
}
task.resume()
}
When I do print_r($_FILES), I get:
Array
(
[file] => Array
(
[name] => image.png
[type] => image/png
[tmp_name] => /tmp/phplSB2dc
[error] => 0
[size] => 864781
)
)

Answer 1

Your form data is currently submitting:
body.appendData("Content-Disposition:form-data; name=\"file\";...
And according to your print_r($_FILES), you should be using file instead of photo:
$_FILES['file']['name']
Also, you should be checking to make sure the file uploaded correctly using:
if ( $_FILES['file']['error'] == UPLOAD_ERR_OK )
{
//File uploaded correctly
}

Answer 2

func uploadMultipleIMAGE( APIStriing:NSString, dataString:NSString) -> Void
{
//Here dataString is image binary data just append you your url and just pass the image it will handle.
print("wscall URL string \(APIStriing)")
print("Data string URL string \(dataString)")
let postData = dataString.dataUsingEncoding(NSASCIIStringEncoding, allowLossyConversion: true)!
let postLength = "\(UInt(postData.length))"
let request = NSMutableURLRequest()
request.URL = NSURL(string: APIStriing as String)!
request.HTTPMethod = "POST"
request.setValue(postLength, forHTTPHeaderField: "Content-Length")
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
request.HTTPBody = postData
NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue(), completionHandler: {(response: NSURLResponse?,data: NSData?,error: NSError?) -> Void in
if error == nil {
print("success")
}
else {
let alert = UIAlertView(title: "Sorry For Inconvenience ", message: "Contact to Administration", delegate: self, cancelButtonTitle: "Ok")
alert.show()
}
})
}
Note:- when you convert image to binary data you need to handle special character. here you can handle special character. follow this step.
1.
let imgData = UIImagePNGRepresentation(image)
imgBase64String = imgData!.base64EncodedStringWithOptions(NSDataBase64EncodingOptions())
var newimagdat = NSString()
newimagdat = newimagdat.stringByAppendingString(self.percentEscapeString(imgBase64String) as String)
imgarray.addObject(newimagdat)
Create character handler class something like that.
class handlecharacter: NSCharacterSet {
func urlParameterValueCharacterSet() -> NSCharacterSet {
let characterser = NSMutableCharacterSet.alphanumericCharacterSet()
characterser.addCharactersInString("-._~")
return characterser
}
}
Now create function your class where you want to upload images
func percentEscapeString(imgstring:NSString) -> NSString
{
let handle = handlecharacter()
return imgstring.stringByAddingPercentEncodingWithAllowedCharacters(handle.urlParameterValueCharacterSet())!
}