php image upload - 从表单上传但未存储路径的图像

Question

我还没有在一年多的时间内编码，所以请保持温和！

我写了一个表单，使用sendmail脚本向管理员发送电子邮件，并将任何图像上传到网站中的文件夹，并将路径记录到数据库表中。 sendmail脚本工作，图像存储在我网站的uploads文件夹中，但路径没有记录，插入查询记录以下错误：

Query was: INSERT INTO englisharabicimages VALUES ('','uploads/milkshake.png'). Error:

我知道我可能遗漏了一些非常基本的东西，但是自从我涉足php之后已经很久了。我无法弄清楚我做错了什么。

<?php
//connect to database, check login credentials, declare message variables
include "connect.php";
error_reporting(E_ERROR);
require_once('sendmail.php');
$message = $_GET['message'];

//function to check for valid image formats
function upload($file_upload, $dir){
$url ='';  
$finfo = finfo_open(FILEINFO_MIME_TYPE);
$file = finfo_file($finfo, $file_upload["tmp_name"]);

$allowedExts = array("gif", "jpeg", "jpg", "png", "pdf", "PDF", "doc", "DOC",     "docx", "DOCX", "JPG", "JPEG", "PNG", "GIF");
$temp = explode(".", $file_upload["name"]);
$extension = end($temp);
if ((($file == "image/gif")
|| ($file == "image/jpeg")
|| ($file == "image/jpg")
|| ($file == "image/pjpeg")
|| ($file == "image/x-png")
|| ($file == "image/png"))
|| ($file == "application/pdf")
|| ($file == "application/msword")
|| ($file == "application/vnd.openxmlformats-    officedocument.wordprocessingml.document")
&& ($file_upload["size"] < 7000000)
&& in_array($extension, $allowedExts))
{
if ($file_upload["error"] > 0){
$message = "An error occurred: " . $file_upload["error"] . "<br>";
}
else{
$path = $dir . $file_upload["name"];
move_uploaded_file($file_upload["tmp_name"],$path);
}
}
else
{
$message = "Wrong format";
}

return $path;
}

$projectdetailsErr = $emailErr = $dateErr = "";
$projectdetails = $email = $date = "";

function validate_input($data)
{
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}

if (isset($_POST['Submit']))
{
$has_errors = false;
if (!empty($_POST["projectdetails"])) {$projectdetails =     validate_input($_POST["projectdetails"]);}
if (!empty($_POST["email"])) {$email = validate_input($_POST["email"]);}
if (!empty($_POST["date"])) {$date = validate_input($_POST["date"]);}

if (!$has_errors)
{
$Link = mysql_connect($Host, $User, $Password);
$path = upload($dir);
if(!empty($_FILES) && is_array($_FILES)){
$path = upload($_FILES["image"], "uploads/");
}       
$Query = "INSERT INTO englisharabicimages VALUES     ('','".mysql_escape_string($path)."')";
} else {

die("Query was: $Query. Error: ".mysql_error($Link));
}

if($sql = mysql_db_query ($DBName, $Query, $Link)) {
$message = "Thank you for your enquiry.";
header("Location: index.php?message=".urlencode($message));
} else {
die("Query was: $Query. Error: ".mysql_error($Link));
}

}
?>