[英]Uploading images to server doesn't work
我正在尝试通过xcode中的php请求将图片上传到我的服务器。 我尝试了许多可能性,但到目前为止似乎没有任何效果。 我对php不太了解,因此可能存在错误。 现在,它只是给我错误“文件类型不正确”,但我绝对使用的是jpg图片。 (尝试了不止一次)
这是我在xcode中拥有的东西:
NSData *imageData = UIImageJPEGRepresentation(image.image, 90);
NSString *urlString = @"http://myserver/upload.php";
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:@"POST"];
NSString *boundary = [NSString stringWithString:@"---------------------------14737809831466499882746641449"];
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
[request addValue:contentType forHTTPHeaderField: @"Content-Type"];
NSMutableData *body = [NSMutableData data];
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"userfile\"; filename=\"ipodfile.jpg\"\r\n"] 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]];
[request setHTTPBody:body];
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
和我的PHP文件:
<?php
$uploaddir = '/images/'; //Uploading to same directory as PHP file
$file = basename($_FILES['userfile']['name']);
$uploadfile = $uploaddir . $file;
if (is_uploaded_file($_FILES['userfile']['tmp_name']))
{
echo "Temp file uploaded. \r\n";
} else {
echo "Temp file not uploaded. \r\n";
}
if ((!($_FILES['userfile']['type'] == "image/jpeg")) && (!($_FILES['userfile']['type'] == "image/png")))
{
exit("Incorrect file type. " . $_FILES['userfile']['type'] . " is the file type you uploaded.");
}
if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) {
$postsize = ini_get('post_max_size');
$canupload = ini_get('file_uploads');
$tempdir = ini_get('upload_tmp_dir');
$maxsize = ini_get('upload_max_filesize');
echo "http://www.mycompanyname.com/myappname/{$file}" . "\r\n" . $_FILES['userfile']['size'] . "\r\n" . $_FILES['userfile']['type'] ;
}
?>
$ _FILES ['userfile'] ['type']文件的mime类型(如果浏览器提供了此信息)。 一个例子是“ image / gif”。 但是,不会在PHP端检查此mime类型,因此不要将其值视为理所当然。
http://php.net/manual/zh/features.file-upload.post-method.php
如果要检查mime-type,则应遵循另一种方法,例如mime_content_type()
检查文件类型并检查目录路径$ uploaddir ='/ images /'; 这是正确的吗? 这段代码对我来说很好用。
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