这是delete.php
<?php
if(isset($_GET['id']) && !empty($_GET['id']))
{
$id = $_GET['id'];
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "test";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "DELETE FROM table WHERE memberid IN ('".$id."' )";
if ($conn->query($sql) === TRUE) {
echo "Record updated successfully" ;
} else {
echo "Error updating record: " . $conn->error;
}
$conn->close();
}
?>
这是home.php
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "select memberid from table group by memberid having count(*) > 5";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "Member ID: " . $row["memberid"]. " | <a href='javascript:void(0);' onClick='deleteId(".$row["memberid"].")'>reset</a><br>";
}
} else {
echo "0 results";
}
$conn->close();
<script>
function deleteId(id)
{
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200)
{
alert(xmlhttp.responseText);
}
};
xmlhttp.open("GET", "delete.php?id=" +id, true);
xmlhttp.send();
//window.location.reload();
}
</script>
我试图通过onclick从home.php删除表中的多行,但遗憾的是它根本不起作用。
在表格行中记录了许多相同的memberid,所以我试图通过memberid调用并在1click中删除所有这些
我是php和mysql的新手。
感谢您的帮助。
答案 0 :(得分:0)
$sql = "DELETE FROM table WHERE c ='$id'";
答案 1 :(得分:0)
试试这个:
$idArr = explode(",", $id);
$idStr = implode("','", $idArr);
$sql = "DELETE FROM table WHERE c IN ('$idStr' )";
另外,在您的客户端代码中,
确保 deleteId()中的 id 警告012345而不是12345.否则,请在调用deleteId()之前将整数转换为字符串。
答案 2 :(得分:0)
您正在发送一个ID,因此不需要使用IN(),普通id = ?
将删除具有该ID的所有行。但是你需要使用绑定参数来阻止某人发送类似1 or 1=1
的内容来删除表中的所有行,即使从你的javascript发送它也不信任输入