php-无法将图像上传到服务器ios
作者:互联网
您好,我正在尝试将图像从我的IOS设备上传到服务器.
这是我上传图片的代码
- (IBAction)btnUpload:(id)sender {
if (self.imageViewGallery.image == nil) {
UIAlertView *ErrorAlert = [[UIAlertView alloc] initWithTitle:@"Wait"
message:@"Please Select An Image To Upload." delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil, nil];
[ErrorAlert show];
NSLog(@"error");
}
else{
NSData *imageData = UIImageJPEGRepresentation(self.imageViewGallery.image, 90);
NSString *urlString = @"http://localhost/ColorPicker/api.upload.php";
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:@"POST"];
NSString *boundary = @"---------------------------14737809831466499882746641449";
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
[request addValue:contentType forHTTPHeaderField: @"Content-Type"];
NSString *imgName = LIbraryImage;
NSLog(@"image name : %@",imgName);
NSMutableData *body = [NSMutableData data];
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"files\"; filename=\"%@\"\r\n", imgName]] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"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];
NSLog(@"setRequest : %@", request);
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
NSLog(@"returnstring is : %@",returnString);
}
现在,这是我的服务器端代码.有点长
<?php
$Image = $_FILES['files']['name'];
print_r($_FILES);
foreach ($Image as $f => $name) {
$allowedExts = array("gif", "jpeg", "jpg", "png");
$temp = explode(".", $name);
$extension = end($temp);
if ((($_FILES['files']['type'][$f] == "image/gif") || ($_FILES['files']['type'][$f] == "image/jpeg") || ($_FILES['files']['type'][$f] == "image/jpg") || ($_FILES['files']['type'][$f] == "image/png")) && ($_FILES['files']['size'][$f] < 2000000) && in_array($extension, $allowedExts)) {
if ($_FILES['files']['error'][$f] > 0) {
echo "Return Code: " . $_FILES['files']['error'][$f] . "<br>";
} else {
if (file_exists("upload/" . $name)) {
} else {
move_uploaded_file($_FILES['files']['tmp_name'][$f], 'upload/' . uniqid() . "_" . $name);
}
}
} else {
$error = "Invalid file";
}
}
?>
现在,每次我尝试上传时发生的情况都得到了此警告
<b>Warning</b>: Invalid argument supplied for foreach() in <b>/Applications/XAMPP/xamppfiles/htdocs/ColorPicker/uploadAction.php</b> on line <b>5</b><br />
解决方法:
分段上传图像数据时,结束于$_FILES
.自PHP 4.3.0起,$_ REQUEST不再包含有关以这种方式上传的文件的任何信息.
您其余的代码基于以下想法:不以多部分形式上传图像,而是以标准格式以base-64字符串形式上传图像.无需将base 64数据写入文件,您只需要从$_FILES获取有关文件的信息,然后将其移动到目标目录为move_uploaded_file
.
标签:file-upload,objective-c,ios,php,image-uploading 来源: https://codeday.me/bug/20191122/2058695.html