图像未使用 ID 名称保存
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【中文标题】图像未使用 ID 名称保存【英文标题】：Image not saving with id name 【发布时间】：2017-07-02 23:22:04 【问题描述】：大家好，我已经创建了一个系统，通过该系统，从管理面板上传的任何图片都会根据 ID 保存在特定文件夹中！ 但是当我进行一些更改时，我的 php 网站没有保存带有 id 名称的图片，也没有存储超过 1 张图片。
<?php
// This file is www.developphp.com curriculum material
// Written by Adam Khoury January 01, 2011
// http://www.youtube.com/view_play_list?p=442E340A42191003
// Connect to the mysql database
include "connect.php";
?>
<?php
// Script Error Reporting
error_reporting(E_ALL);
ini_set('display_errors', '1');
?>
<?php
// Delete Item Question to Admin, and Delete Product if they choose
if (isset($_GET['deleteid']))
echo 'Do you really want to delete product with ID of ' . $_GET['deleteid'] . '? <a href="inventory_list.php?yesdelete=' . $_GET['deleteid'] . '">Yes</a> | <a href="inventory_list.php">No</a>';
exit();
if (isset($_GET['yesdelete']))
// remove item from system and delete its picture
// delete from database
$id_to_delete = $_GET['yesdelete'];
$sql = mysqli_query($conn,"DELETE FROM products WHERE id='$id_to_delete' LIMIT 1") or die (mysql_error());
// unlink the image from server
// Remove The Pic -------------------------------------------
$pictodelete = ("../inventory_images/$id_to_delete.jpg");
if (file_exists($pictodelete))
unlink($pictodelete);
header("location: inventory_list.php");
exit();
?>
<?php
// Parse the form data and add inventory item to the system
if (isset($_POST['product_name']))
$product_name = mysqli_real_escape_string($_POST['product_name']);
$price = mysqli_real_escape_string($_POST['price']);
$category = mysqli_real_escape_string($_POST['category']);
$subcategory = mysqli_real_escape_string($_POST['subcategory']);
$details = mysqli_real_escape_string($_POST['details']);
// See if that product name is an identical match to another product in the system
$sql = mysqli_query($conn,"SELECT id FROM products WHERE product_name='$product_name' LIMIT 1");
$productMatch = mysql_num_rows($sql); // count the output amount
if ($productMatch > 0)
echo 'Sorry you tried to place a duplicate "Product Name" into the system, <a href="inventory_list.php">click here</a>';
exit();
// Add this product into the database now
$sql = mysqli_query($conn,"INSERT INTO products (product_name, price, details, category, subcategory, date_added)
VALUES('$product_name','$price','$details','$category','$subcategory',now())") or die (mysql_error());
$pid = mysql_insert_id();
// Place image in the folder
$newname = "$pid.jpg";
move_uploaded_file( $_FILES['fileField']['tmp_name'], "../inventory_images/$newname");
header("location: inventory_list.php");
exit();
?>
<?php
// This block grabs the whole list for viewing
$product_list = "";
$sql = mysqli_query($conn,"SELECT * FROM products ORDER BY date_added DESC");
$productCount = mysql_num_rows($sql); // count the output amount
if ($productCount > 0)
while($row = mysql_fetch_array($sql))
$id = $row["id"];
$product_name = $row["product_name"];
$price = $row["price"];
$date_added = strftime("%b %d, %Y", strtotime($row["date_added"]));
$product_list .= "Product ID: $id - <strong>$product_name</strong> - $$price - <em>Added $date_added</em> <a href='inventory_edit.php?pid=$id'>edit</a> • <a href='inventory_list.php?deleteid=$id'>delete</a><br />";
else
$product_list = "You have no products listed in your store yet";
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Inventory List</title>
<link rel="stylesheet" href="../style/style.css" type="text/css" media="screen" />
</head>
<body>
<div align="center" id="mainWrapper">
<?php include_once("../template_header.php");?>
<div id="pageContent"><br />
<div align="right" style="margin-right:32px;"><a href="inventory_list.php#inventoryForm">+ Add New Inventory Item</a></div>
<div align="left" style="margin-left:24px;">
<h2>Inventory list</h2>
<?php echo $product_list; ?>
</div>
<hr />
<a name="inventoryForm" id="inventoryForm"></a>
<h3>
↓ Add New Inventory Item Form ↓
</h3>
<form action="inventory_list.php" enctype="multipart/form-data" name="myForm" id="myform" method="post">
<table border="0" cellspacing="0" cellpadding="6">
<tr>
<td align="right">Product Name</td>
<td ><label>
<input name="product_name" type="text" id="product_name" size="64" />
</label></td>
</tr>
<tr>
<td align="right">Product Price</td>
<td><label>
$
<input name="price" type="text" id="price" size="12" />
</label></td>
</tr>
<tr>
<td align="right">Category</td>
<td><label>
<select name="category" id="category">
<option value="Clothing">Clothing</option>
</select>
</label></td>
</tr>
<tr>
<td align="right">Subcategory</td>
<td><select name="subcategory" id="subcategory">
<option value=""></option>
<option value="Hats">Hats</option>
<option value="Pants">Pants</option>
<option value="Shirts">Shirts</option>
</select></td>
</tr>
<tr>
<td align="right">Product Details</td>
<td><label>
<textarea name="details" id="details" cols="64" rows="5"></textarea>
</label></td>
</tr>
<tr>
<td align="right">Product Image</td>
<td><label>
<input type="file" name="fileField" id="fileField" />
</label></td>
</tr>
<tr>
<td> </td>
<td><label>
<input type="submit" name="button" id="button" value="Add This Item Now" />
</label></td>
</tr>
</table>
</form>
<br />
<br />
</div>
<?php include_once("../template_footer.php");?>
</div>
</body>
</html>
【问题讨论】：
你检查过网络服务器错误日志吗？ 警告：mysqli_real_escape_string() 需要 2 个参数，1 个在 C:\wamp\www\newest\admin\inventory_list.php 第 40 行 @Difster 中给出 另外，考虑切换到 PDO。 【参考方案1】：您不能使用同一连接在mysqli 和mysql 之间切换。 （注意mysql_insert_id）。
将mysql_insert_id 更改为mysqli_insert_id($conn)。
另外：将所有 mysqli_real_escape_string($_POST...) 更改为 mysqli_real_escape_string($conn, $_POST...)（... = POST 名称）并将 mysql_num_rows 更改为 mysqli_num_rows($conn, $sql)。
查看php.net 网站，了解mysql 和mysqli 之间的变化概览。
【讨论】：
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