<?php
    $servername = "localhost";
    $username = "";
    $password = "";
    $database = "";

$file_get = $_FILES['foto']['name'];
$temp = $_FILES['foto']['tmp_name'];
$conn = mysqli_connect($servername, $username, $password, $database);

$file_to_saved = "uploads".$file_get;
move_uploaded_file($temp, $file_to_saved);

echo $file_to_saved;

$insert_img = mysqli_query($conn,"INSERT INTO members (avatar) VALUES ('".$file_to_saved."')");
if ($insert_img) {
# code...
echo "Img inserted successfully";
}
else{
 echo "There is something wrong with this code.";
}

?>

<form name="imgupl" action="" method="POST" enctype="multipart/form-data">
    <input type="file" name="foto">
    <p>
    <button>Submit Image</button>
 </form>