Php 将图像上载添加到现有表单时遇到问题

我正在为我的网站设置分类广告，我发现自己又被卡住了

我是PHP新手，但我正在为分类广告和我将在下面提供的脚本开发一个更好的鼠标陷阱。我完全是从头开始编写的，它可以工作。上传数据到数据库，但当我添加以：if$\u POST['Image 1']开头的if块时{整个程序崩溃了。我得到一个白色屏幕，没有错误信息或任何东西

这是本页的完整代码

<?php
    ob_start();
    session_start();
    require_once('z-mysql_ini.php');
    require ('z-connect.php');

    $mysql = new mysql();       

    if($_POST['Description'] != "") {
        $TypeID = $_POST['TypeID'];     
        $FatherID = $_POST['fatherID'];
        $Model = $_POST['Model'];
        $Price = $_POST['Price'];
        $Description = $_POST['Description'];
        $Year = $_POST['Year'];     
        $VIN = $_POST['VIN'];
        $Address = $_POST['Address'];
        $City = $_POST['City'];
        $State = $_POST['State'];
        $ZIP = $_POST['ZIP'];
        $Country = $_POST['Country'];
        $Email = $_POST['Email'];
        $Phone = $_POST['Phone'];       
        $InformOfUpdates = $_POST['Inform'];
        }   

        $node = new sqlNode();
        $node->table = sprintf("`tt_%s`", abs(intval($_POST['TypeID'])));
        $node->push("int", "CategoryID", $FatherID);    
        $node->push("int", "MemberID", $_SESSION['memberID']);
        $node->push("text", "Model", strtoupper($Model));       
        $node->push("int", "Price ($)", $Price);
        $node->push("text", "Description", $Description);
        $node->push("int", "Year", $Year);
        $node->push("text", "VIN", $VIN);
        $node->push("defined","PostDate","NOW()");
        $node->push("text","Featured","yes");
        $node->push("defined","ExpireDate","DATE_ADD(NOW(),INTERVAL 30 DAY)");
        $node->push("text", "Address", $Address);
        $node->push("text", "City", $City);
        $node->push("text", "State/Province", $State);
        $node->push("text", "ZIP/Postal", $ZIP);
        $node->push("text", "Country", $Country);
        //$node->push("text", "Email", $Email);
        //$node->push("text", "Phone", $Phone);     
        $node->push("int", "Inform", $InformOfUpdates);

        if(($result = $mysql->insert($node)) === false) {
            echo mysql_error();
            echo 'Unable to Insert Data'; 
            } else {
                $ListingID = mysql_insert_id();
                }

                if($_POST['Image 1'] != "") {   
                    echo 'File Selected and Data set in DB';
                    } else{
                        echo 'No File Selcted but Data Inserted';

                        //header("Location:memberindex.php");
                    }
                    }               

            ?>

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打开错误报告，检查错误是什么。使用错误报告；谢谢@Samy，我想我找到了一个胭脂卷发支架。

if($_POST['Image 1'] != "") {   
                    echo 'File Selected and Data set in DB';
                    } else{
                        echo 'No File Selcted but Data Inserted';

                        //header("Location:memberindex.php");
                    }