使用for循环更新表映像

嗨，我正在尝试使用for循环更新图像，因为我在插入它们时使用它们。但它只是更新了所有记录上的一个值。请

<?php session_start();
require_once("SubmitController/sale_property_controller.php");
$objproperty = new sale_property_controller();
if (count($_FILES['upload']['name']) > 0) {
    //Loop through each file
    for ($i = 0; $i < count($_FILES['upload']['name']); $i++) {
        //Get the temp file path
        $tmpFilePath = $_FILES['upload']['tmp_name'][$i];
        //Make sure we have a filepath
        if ($tmpFilePath != "") {
            //save the filename
            $shortname = date('d-m-Y-H-i-s') . '-' . $_FILES['upload']['name'][$i];
            //save the url and the file
            $filePath = "../img/saleproperty/" . $shortname;
            //Upload the file into the temp dir
            if (move_uploaded_file($tmpFilePath, $filePath)) {
                $_SESSION['Property_images'][] = $shortname;
            }
        }
    }
}
if(!$_SESSION['Property_images']){}else{
    foreach ($_SESSION['Property_images'] as $items => &$item ) {
        $property_id=$_GET['id'];
        $objproperty->Updateproimg($property_id, $item);
        }
}
?>

this is my function

function Updateproimg($property_id, $item)
{   
    $sql="update images_property set images='".$item."' where property_id='".$property_id."' ";
    $this->update($sql);
}