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I use file_put_contents to upload an image, but it can only be saved in the current directory. How can I move the image to the desired directory?

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Release： 2016-10-10 11:39:13
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<code>$id = $_POST['id'];
$name = $_POST['name'];
$address = $_POST['address'];
$phonenumber = $_POST['phonenumber'];
$image = $_POST['image'];//得到图片
$imageBase64 = base64_decode($image);

$host = $_SERVER['HTTP_HOST'];//获取主机IP
$post = $_SERVER['HTTP_PORT'];//获取主机端口


$imageName = $id.".png";//生成的图片名称和用户ID一样
$file_put = file_put_contents($imageName, $imageBase64);

</code>
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I uploaded the image after converting it to Base64, but using the file_put_contents function can only be placed in the directory of the script. How can I move the uploaded image to the desired directory?

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