Question

在页面上，我试图在更新表单上使用其他编辑功能的删除按钮，并且在所有尝试中，似乎我的删除混乱了。

这是该网站的链接，因此您可以测试：http://exhibitjewellery.com/editstocktest.php （该按钮当前位于“所有系列中的部件”下，单击一个名称可将该表单打开为可折叠面板）

我已经使用了dreaweaver cs5向导，如果这有助于了解我的其余代码的外观。你能救我吗？

<?php 
if (isset($_GET['delete'])) {
echo 'Do you really want to delete ' . $_GET['delete'] . '? <a  href="editstock.php?yesdelete=' . $_GET['delete'] . '">Yes</a> | <a href="editstock.php">No</a>';
exit();
}
if (isset($_GET['yesdelete'])) {
$deleteSQL = sprintf("DELETE FROM pieces WHERE id='%s' LIMIT 1",
                   GetSQLValueString($_POST['id'], "int"));

mysql_select_db($database_connectmysql, $connectmysql);
$Result1 = mysql_query($deleteSQL, $connectmysql) or die(mysql_error());
header("location: editstock.php"); 
exit();
}
?>

以上代码由此按钮激活：

<input name="delete" type="button" id="delete" value="delete" style="width:20%; float:right"/>

Answer 1

如果您在http://exhibitjewellery.com/editstocktest.php中查看源代码，就会看到您的表单正在使用method="post"

<form action="/editstocktest.php?" method="post" name="form4" id="form4">

所以你不能我们$_GET -

if (isset($_GET['delete'])) {}

另外，在您的删除链接中，您使用的是delete的值，但我认为您需要id - $_POST['id']

最后，当您点击该链接$_POST['id']无法在if (isset($_GET['yesdelete']))内使用时，您需要将id添加到网址

编辑1
这里有一个建议的方法来改变它，虽然基于网址删除永远不是一个好主意。最好确保只有管理员才能以这种方式访问/删除。注意，GetSQLValueString()是Dreamweaver创建的函数，因此您需要确保将文件包含在定义的位置。

<?php 
if (isset($_POST['delete'])) {
echo 'Do you really want to delete ' . $_POST['piece'] . '? <a  href="editstock.php?yesdelete=' . $_POST['id'] . '">Yes</a> | <a href="editstock.php">No</a>';
exit();
}
if (isset($_GET['yesdelete'])) {
include('file where GetSQLValueString() is defined'); // you have to change **file where GetSQLValueString() is defined** to the file path
$deleteSQL = sprintf("DELETE FROM pieces WHERE id='%s' LIMIT 1",
                   GetSQLValueString($_GET['yesdelete'], "int"));

mysql_select_db($database_connectmysql, $connectmysql);
$Result1 = mysql_query($deleteSQL, $connectmysql) or die(mysql_error());
header("location: editstock.php"); 
exit();
}
?>

编辑＃2
由于您要使用onclick执行删除功能，因此您需要修改location.href并使用$_GET。

你的html按钮

<input name="delete" type="button" id="delete" value="delete" style="width:20%; float:right" onclick="window.location.href = '?delete=delete&id=<?php echo $row['id']; ?>&piece=<?php echo $row['piece']; ?>'"/>

我不知道您如何填充表单元素，因此请更改$row['id']＆amp; $row['piece']您的方法。

然后你的删除功能 -

<?php 
if (isset($_GET['delete'])) {
echo 'Do you really want to delete ' . $_GET['piece'] . '? <a  href="editstock.php?yesdelete=' . $_GET['id'] . '">Yes</a> | <a href="editstock.php">No</a>';
exit();
}
if (isset($_GET['yesdelete'])) {
include('file where GetSQLValueString() is defined'); // you have to change **file where GetSQLValueString() is defined** to the file path
$deleteSQL = sprintf("DELETE FROM pieces WHERE id='%s' LIMIT 1",
                   GetSQLValueString($_GET['yesdelete'], "int"));

mysql_select_db($database_connectmysql, $connectmysql);
$Result1 = mysql_query($deleteSQL, $connectmysql) or die(mysql_error());
header("location: editstock.php"); 
exit();
}
?>

编辑3
如果你找不到Dreamweaver定义函数的位置，你可以重新声明它 -

<?php 
if (isset($_GET['delete'])) {
echo 'Do you really want to delete ' . $_GET['piece'] . '? <a  href="editstock.php?yesdelete=' . $_GET['id'] . '">Yes</a> | <a href="editstock.php">No</a>';
exit();
}
if (isset($_GET['yesdelete'])) {

// redefine if does not exist
if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType,
$theDefinedValue = "", $theNotDefinedValue = "") 
{
if (PHP_VERSION < 6) {
$theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
}

$theValue = function_exists("mysql_real_escape_string") ?
mysql_real_escape_string($theValue) : mysql_escape_string($theValue);

switch ($theType) {
case "text":
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
break;    
case "long":
case "int":
$theValue = ($theValue != "") ? intval($theValue) : "NULL";
break;
case "double":
$theValue = ($theValue != "") ? doubleval($theValue) : "NULL";
break;
case "date":
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
break;
case "defined":
$theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
break;
}
return $theValue;
}
}


$deleteSQL = sprintf("DELETE FROM pieces WHERE id='%s' LIMIT 1",
                   GetSQLValueString($_GET['yesdelete'], "int"));

mysql_select_db($database_connectmysql, $connectmysql);
$Result1 = mysql_query($deleteSQL, $connectmysql) or die(mysql_error());
header("location: editstock.php"); 
exit();
}
?>

Answer 2

试试这个

<form action="" method="get">
    <input name="delete" type="submit" id="delete" value="delete" style="width:20%; float:right"/>
</form>

或

<input name="delete" type="button" id="delete" value="delete" style="width:20%; float:right" onclick="window.location.href = '?delete=delete'" />

Answer 3

我知道这听起来像个愚蠢的问题，但您使用的是HTML表单吗？此外，您可能希望将输入类型设置为“提交”而不是“按钮”

又名

<form action="" method="GET">
    <input type="submit" name="delete" id="delete" value="delete" style="width:20%; float:right"/>
</form>

删除不使用连接按钮的代码

3 个答案: