PHP - 检查文件上载的大小

Question

I am uploading a file to database using php. May I know why I am not getting any amount of size when I upload? When I print_r($_FILES) on the size it return:

Array
(
    [uploaded] => Array
        (
            [name] => Array
                (
                    [0] => f2-CP-2016.pdf
                    [1] => 
                    [2] => 
                )

    [size] => Array
                (
                    [0] => 0
                    [1] => 0
                    [2] => 0
                )

I have upload a file but the size still return 0. I want to make a validation for size > 3MB it will return an error. Below are my codes:

for($i=0; $i < count($_FILES['uploaded']['name']); $i++){
    $array = array($_FILES['uploaded']['name']);
    $tmpFilePath = $_FILES['uploaded']['tmp_name'][$i];
    $filesize_upload = $_FILES['uploaded']['size'][$i];

    if($filesize_upload > 3145728){
        die('File is BIG');
    } else {
        //proceed to upload
    }   

}

Update with error:

This is the error that I received

[error] => Array
            (
                [0] => 1
                [1] => 4
                [2] => 4
            )

Answer 1

Check the error index in the uploaded array... you might have a code which defines the error nature.

Read the Error messages