PHPとJSONを使用してXcodeからMySQLデータベースに画像データを挿入

Question

JSONを使用してPHP経由でXCodeからMySQLデータベースに画像を挿入/保存する方法は？ Xcodeのから

Answer 1

、あなたは：

-(void) uploadImage: (UIImage *)image 
{ 
       NSData *imageData = UIImageJPEGRepresentation(image, 10); 
     // setting up the URL to post to 
     NSString *urlString = @"http://url.of.your.server/imagesupload.php"; 

     // setting up the request object now 
     NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; 
     [request setURL:[NSURL URLWithString:urlString]]; 
     [request setHTTPMethod:@"POST"]; 

     /* 
     add some header info now 
     we always need a boundary when we post a file 
     also we need to set the content type 

     You might want to generate a random boundary.. this is just the same 
     as my output from wireshark on a valid html post 
     */ 
     NSString *boundary = [NSString stringWithString:@"---------------------------14737809831466499882746641449"]; 
     NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary]; 
     [request addValue:contentType forHTTPHeaderField: @"Content-Type"]; 

     /* 
     now lets create the body of the post 
     */ 
     NSMutableData *body = [NSMutableData data]; 
     [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
     [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"image\"; filename=\"imagename.jpg\"\r\n",index] dataUsingEncoding:NSUTF8StringEncoding]]; 
     [body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 
     [body appendData:[NSData dataWithData:imageData]]; 
     [body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
     // setting the body of the post to the reqeust 
     [request setHTTPBody:body]; 

     // now lets make the connection to the web 
     NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; 
     NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding]; 

     NSLog(returnString); 
} 

PHPから、あなたが実行します。

function imageUpload() 
{ 
// Make sure the user actually 
// selected and uploaded a file 
if (isset($_FILES['image']) && $_FILES['image']['size'] > 0) { 

     // Temporary file name stored on the server 
     $tmpName = $_FILES['image']['tmp_name']; 

     // Read the file 
     $fp  = fopen($tmpName, 'r'); 
     $data = fread($fp, filesize($tmpName)); 
     $data = addslashes($data); 
     fclose($fp); 


     // Create the query and insert 
     // into our database. 
     $query = "INSERT INTO tbl_images "; 
     $query .= "(image) VALUES ('$data')"; 
     $results = mysql_query($query, $link); 

     // Print results 
     print "Thank you, your file has been uploaded."; 

} 
else { 
    print "No image selected/uploaded"; 
} 

// Close our MySQL Link 
mysql_close($link); 
}