Flutter web file upload - php

Question

void _uploadFile(Event event) async {
print("called");
final files = uploadInput.files;
final file = files![0];
_fileNameController.text = file.name;
// Get the file contents as a List<int>
final reader = new FileReader();
reader.readAsArrayBuffer(file);
await reader.onLoad.first;
final contents = reader.result as List<int>;
// Encode the file contents as a base64 string
final encodedFile = base64Encode(contents);
var response = await http.post(Uri.parse("http://url/img_test/img.php"),
body: jsonEncode(<String, String>{
'file': encodedFile,
})
);
print(response.body);
if (response.statusCode == 200) {
// Handle the success case
print("ok");
} else {
// Handle the error case
print("try");
}
}
I all ready set as file in body but till it shows
Error shows in flutter
Warning: Undefined array key "file" in M:\WEB\htdocs\img_test\img.php on line 7
PHP API:
<?php
move_uploaded_file($_FILES['file']['tmp_name'], 'uploads/' . $_FILES['file']['name']);
?>

Answer 1

your request post not send file, this string value, you can try decode in your php file like this
$base64string = "data:image/jpeg;base64,".$POST['file'];
list($type, $base64string) = explode(';', $base64string);
list(,$extension) = explode('/',$type);
list(,$base64string) = explode(',', $base64string);
$fileName = uniqid()'.'.$extension;
$imageFile = base64_decode($base64string);
file_put_contents($path.$fileName, $imageFile);