编辑现有图像 php mysql
我有以下代码,使用 mysql 表中的 php echo id 显示给定图像。 php 是:
<?php include 'dbc.php'; page_protect();
$id=$_GET['id'];
if(!checkAdmin()) {header("Location: login.php");
exit();
}
$host = $_SERVER['HTTP_HOST'];
$host_upper = strtoupper($host);
$login_path = @ereg_replace('admin','',dirname($_SERVER['PHP_SELF']));
$path = rtrim($login_path, '/\\');
foreach($_GET as $key => $value) {
$get[$key] = filter($value);
}
foreach($_POST as $key => $value) {
$post[$key] = filter($value);
}
?>
<?php
if($_FILES['photo'])
{
$target = "images/furnishings/";
$target = $target . basename( $_FILES['photo']['name']);
$title = mysql_real_escape_string($_POST['title']);
$pic = "images/furnishings/" .(mysql_real_escape_string($_FILES['photo']['name']));
if(move_uploaded_file($_FILES['photo']['tmp_name'], $target))
{
mysql_query("update `furnishings` set `photo`='$pic' WHERE id='$id'") ;
echo "Image updated";
}
else
{
echo "Please select a new image to upload";
}
}
?>
HTML 是:
<form enctype="multipart/form-data" action="editfurnimage.php" method="POST">
<table width="450" border="2" cellpadding="5"class="myaccount">
<tr>
<td width="35%" class="myaccount">Current Image: </td>
<td width="65%"><img src='<?php
mysql_select_db("dbname", $con);
mysql_set_charset('utf8');
$result = mysql_query("SELECT * FROM furnishings WHERE id='$id'");
while($row = mysql_fetch_array($result))
{
echo '' . $row['photo'] . '';
}
mysql_close($con);
?>' style="width:300px; height:300px;"></td>
</tr>
<tr>
<td class="myaccount">New Image: </td>
<td><input type="file" name="photo" /></td>
</tr>
<tr>
<td colspan="2"><input type="submit" class="CMSbutton" value="Add" /></td>
</tr>
</table>
</form>
当编码将新图像添加到服务器时,mysql 表似乎没有使用新图像进行更新 - 事实上没有进行任何更改 - 当我将行:调整
mysql_query("update `furnishings` set `photo`='$pic' WHERE id='$id'") ;
为:
mysql_query("update `furnishings` set `photo`='$pic' WHERE id='8'") ;
it虽然可以工作,但假设问题出在这部分代码上,但不确定如何更正代码以将 $id 正确拉入 php 中。
最后,当脚本运行时,我试图在用户单击“添加”按钮后重新加载页面“editfurnimage.php?id=$id” - 目前返回的页面是“editfurnimage.php”,这显然不是显示表中的任何数据。
非常感谢任何帮助 - 并且一如既往地随意撕开我的编码 - 仍在学习!
谢谢 京东
I have the following code that displays a given image using php echo id from a mysql table. The php is:
<?php include 'dbc.php'; page_protect();
$id=$_GET['id'];
if(!checkAdmin()) {header("Location: login.php");
exit();
}
$host = $_SERVER['HTTP_HOST'];
$host_upper = strtoupper($host);
$login_path = @ereg_replace('admin','',dirname($_SERVER['PHP_SELF']));
$path = rtrim($login_path, '/\\');
foreach($_GET as $key => $value) {
$get[$key] = filter($value);
}
foreach($_POST as $key => $value) {
$post[$key] = filter($value);
}
?>
<?php
if($_FILES['photo'])
{
$target = "images/furnishings/";
$target = $target . basename( $_FILES['photo']['name']);
$title = mysql_real_escape_string($_POST['title']);
$pic = "images/furnishings/" .(mysql_real_escape_string($_FILES['photo']['name']));
if(move_uploaded_file($_FILES['photo']['tmp_name'], $target))
{
mysql_query("update `furnishings` set `photo`='$pic' WHERE id='$id'") ;
echo "Image updated";
}
else
{
echo "Please select a new image to upload";
}
}
?>
The HTML is:
<form enctype="multipart/form-data" action="editfurnimage.php" method="POST">
<table width="450" border="2" cellpadding="5"class="myaccount">
<tr>
<td width="35%" class="myaccount">Current Image: </td>
<td width="65%"><img src='<?php
mysql_select_db("dbname", $con);
mysql_set_charset('utf8');
$result = mysql_query("SELECT * FROM furnishings WHERE id='$id'");
while($row = mysql_fetch_array($result))
{
echo '' . $row['photo'] . '';
}
mysql_close($con);
?>' style="width:300px; height:300px;"></td>
</tr>
<tr>
<td class="myaccount">New Image: </td>
<td><input type="file" name="photo" /></td>
</tr>
<tr>
<td colspan="2"><input type="submit" class="CMSbutton" value="Add" /></td>
</tr>
</table>
</form>
While the coding is adding the new image to the server, the mysql table doesnt seem to be updating with the new image - in fact no changes are being made - when I adjust the line:
mysql_query("update `furnishings` set `photo`='$pic' WHERE id='$id'") ;
to:
mysql_query("update `furnishings` set `photo`='$pic' WHERE id='8'") ;
it works though so assuming the issue is lying with this part of the code but not sure how to correct the code to pull the $id into the php correctly.
Finally, when the script runs I am trying to get the page "editfurnimage.php?id=$id" to reload following the user clicking the Add button - at the moment the page that is returned is "editfurnimage.php" which obviously doesnt show up any data from the table.
Any help much appreciated - and as always feel free to tear my coding apart - still learning!!
Thanks
JD
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尝试删除 $id 周围的单引号。
如果数据库中的 id 字段为 int,则不应在其周围使用引号。
编辑:错过了这一点 - $_GET['id'] 是从哪里发送的,因为您的表单肯定没有在 $_GET 范围内发送任何 id?尝试将名称为“id”的输入及其值添加到您的表单中。另外,在 php 文件中使用 $_POST,而不是 $_GET。
在你的 php 中,替换:
,然后
在你的 html 中添加:
try to remove your single quotes around $id.
If your id field in the database in an int, then quotes should not be used around it.
EDIT: Missed this one - Where is $_GET['id'] being sent from, because your form sure isn't sending any id in the $_GET scope? Try adding the input with a name of 'id' and a value for it in to your form. also, use $_POST in your php file, not $_GET.
In your php, replace:
With
Then in your html add: