如何使用php中的链接创建上传文件[关闭]

I want to create upload file using a link basically i want that user can upload file by using upload link

Create a html form with <input type="file" />. Try this.

<form action="upload.php" method="POST">
    <input type="file" name="attachment"/>
    <br/>
    <br/>
    <button type="submit">Upload</button>
</form>

In PHP

<?php
if(isset($_POST['attachment'])){
  //TODO
{