提交表单时返回呼叫页面 [英] Return to a calling page when submitting a form

问题描述

我正在提交以下表格

I am submitting a form as below

<form action="myfile.php" name ="formSubmit" method="POST" enctype="multipart/form-data">
                <label>Product Code</label>
                <input type="text" name="productCode"><br>
                <label>Product Image</label>
                <input type="file" name="myfile1" />
                <input type="submit" value="Add Product">
                </form>

'myfile.php'包含以下行：

the 'myfile.php' contains the following line:

<?php

// connect to database

$dbname = mysql_connect("************", "user","password")or die('Cannot select database');

mysql_select_db("mydb")or die('Cannot select database');



// if unable to connect display error

if (!$dbname ) {

echo "Unable to establish connection to database server";

exit;

}



if (!mysql_select_db('mydb', $dbname )) {

echo "Unable to connect to database";

exit;

}



if (($_FILES["myfile1"]["type"] == "image/gif")

|| ($_FILES["myfile1"]["type"] == "image/jpeg") // only allow: .gif & .jpeg

&& ($_FILES["myfile1"]["size"] < 2000000)) // limitation of size: 2MB

{

if ($_FILES["myfile1"]["error"] > 0) // error occurs during uploading
{
echo "Return Code: " . $_FILES["myfile1"]["error"] . "<br />";
} //end if
else
{
// show the basic information of uploaded files
echo "Upload: " . $_FILES["myfile1"]["name"] . "<br />";
echo "Type: " . $_FILES["myfile1"]["type"] . "<br />";
echo "Size: " . ($_FILES["myfile1"]["size"] / 1024) . " Kb<br />";
echo "Temp file: " . $_FILES["myfile1"]["tmp_name"] . "<br />";

// check whether the file exists in the target folder
if (file_exists("upload/" . $_FILES["myfile1"]["name"])){
echo $_FILES["myfile1"]["name"] . " already exists. ";
} //end if

// do the uploading: moving the file from temporary folder to the target folder
else
{
move_uploaded_file($_FILES["myfile1"]["tmp_name"],
"upload/" . $_FILES["myfile1"]["name"]);
echo "Stored in: " . "upload/" . $_FILES["myfile1"]["name"] . "<br />";

//store filename in the database together with the product code
$name = $_FILES["myfile1"]["name"];
$result = mysql_query("insert into images values ('$productCode','$name')");
echo "Product " . $productCode . " successfully added to the database." . "<br />" ;
} //end else
} //end else
} // end if

else
{
echo "Invalid file";
}
echo "finish";
header("Location: admin.php");
//header("Location: ".htmlentities($_SERVER['HTTP_REFERER']));
//header("Location: ".$_POST["formSubmit"]);

?>

我的问题是，一旦'myfile.php'中的所有内容成功执行，header命令就不起作用了。有什么想法吗？

My problem that once all the contents in 'myfile.php' are successfully executed the header command is not working. Any ideas please?

推荐答案

dbname = mysql_connect（ ************， user，password）或 die（'不能 选择 database'）;

mysql_select_db（mydb）或 die（'不能 选择 database'）;



< span class =code-summarycomment> // if 无法 to connect display error

if （！

dbname = mysql_connect("************", "user","password")or die('Cannot select database'); mysql_select_db("mydb")or die('Cannot select database'); // if unable to connect display error if (!

dbname < span class =code-summarycomment>） {

echo 无法 to 建立 连接 数据库 server;

退出;

}

< span class =code-summarycomment>

if （！mysql_select_db（'mydb'，

dbname ) { echo "Unable to establish connection to database server"; exit; } if (!mysql_select_db('mydb',

dbname ）） {

echo 无法 < span class =code-summarycomment> connect to database;

退出;

}



< span class =code-su mmarycomment> if （（

dbname )) { echo "Unable to connect to database"; exit; } if ((

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