未设置上传图片$ _FILES [英] upload image $_FILES is not set

问题描述

我正在尝试将文件上传到我的服务器 但是问题是if(isset($ _ FILES ['upl'])))总是返回false

I'm trying to upload a file to my server But the problem is the if(isset($_FILES['upl'])) always returns false

我的php:

if($_SERVER['REQUEST_METHOD'] == 'POST')
$allowed = array('png', 'jpg', 'gif', 'jpeg', 'bmp');
{
    if(isset($_FILES['upl']) )
    {
        echo 'test';
        $extension = pathinfo($_FILES['upl']['name'], PATHINFO_EXTENSION);

        if(!in_array(strtolower($extension), $allowed)){
            echo json_encode(array('success'=> false, 'message'=> 'No supported file type'));
            exit;
        }


    $filename = "test".$extension;
    if(move_uploaded_file($_FILES['upl']['tmp_name'], $url.'images/uploads/'.$filename)){
        echo json_encode(array('success'=> true, 'url'=> $weburl .'images/uploads/'. $filename, 'filename' => $_FILES['upl']['name']));
        exit;
    }
  }
}

html:

<form action="" method="post">
                            <label for="file">Logo</label><input type="file" name="upl">
                            <input type="submit" disabled='disabled' value=''>
                        </form>

如果进行页面内检查，我从不使用任何操作，但使用它不能解决问题

I never use an action if inpage check, using one doesn't fix the problem

推荐答案

您丢失了

enctype="multipart/form-data"

形式

<form action="" method="post" enctype="multipart/form-data">

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