所以我一直在研究这段代码已经有一段时间了,我已经做了很多调试但是无法解决这个问题。我想要做的是:如果选中了复选框,则发送请求以在mySQL数据库上运行查询FROM项目WHERE .class(复选框)'<' this.value(再次显示复选框)然后获取过滤后的结果,然后使用我的javascript格式化它:
的index.php:
<form>
<label><input type="checkbox" class="calories "name="calories" value="300">Less than 300</label><br>
<label><input type="checkbox" class="calories" name="calories" value="500">Less than 500</label><br>
</form>
<script>
$("input.calories:checkbox").on("change",function(){
if(this.checked){
var column = $(this).attr('class'); //The class determines which column of the table is called
var value = $(this).attr('value'); //Takes the numeric value from the selected box
console.log(column);
//$.post('showItems.php', {type: column});
//$.post('showItems.php', {value: value});
//Can we call the php code above to run a query using variables column and value?
//make a php function above and call it
// function below will run showItemss.php?c=column?v=value
$.ajax({
type: "POST",
url: "showItems.php" ,
data: { c: column,
v: value},
error: function(){console.log("error")},
success: function(data) {
console.log("success");
console.log(test);
console.log(filteredList);
</script>
这是我正在调用的PHP文件showItems.php(相关部分):
//This array holds items from database.
$itemList = array();
//Connect and Select
$con = makeConnection($dbhost, $dbuser, $dbpass, $dbname);
//Get the value and type from the javascript below
//If the type is null display the whole table
$c = $_POST['c'];
//echo $c;
//$v = mysqli_real_escape_string($con,$v);
//$type = $_POST['value'];
if($c==null){
$query = "SELECT * FROM items";
}
else{
$v = $_POST['v'];
$query = "SELECT * FROM items WHERE ".$c."< ".$v."";
}
$result = mysqli_query($con, $query);
//Collect data from all items
while($row = $result->fetch_assoc())
{
$tempItem = new Item($row['itemID'], $row['itemName'], $row['price'], $row['description'], $row['calories'], $row['protein'], $row['choles'], $row['sodi'], $row['picLink']);
$itemList[] = $tempItem;
}
echo json_encode($query);
?>
<script>
var test = <?php echo json_encode($query); ?>;
var filteredList = <?php echo json_encode($itemList); ?>;
</script>
因此,我希望每次单击Index.php文件中的复选框时都会运行此代码,以便我可以获取更新的过滤项$ itemList,但我无法弄清楚如何执行此操作。我为测试这个做的事情是将我的php值存储为javascript变量,包括showItems.php然后在Index.log中将来自ShowItems.php的变量控制在console.log中,并且在点击时查询没有更新有意义我猜测。在AJAX成功函数中,'data'包含带有更新查询的整个HTML源代码,但我无法弄清楚如何仅使用成功函数中需要的特定代码。任何想法都会有所帮助。
答案 0 :(得分:0)
尝试这样做:
$Cred = Get-Credential
$computers = Get-Content c:\test\file.txt
Invoke-Command -ComputerName $computers -Credential $cred -ErrorAction Stop -ScriptBlock {Invoke-Expression -Command:"cmd.exe /c 'ipconfig'"} | Out-File c:\test\output.txt -Append
转到on("change",...)
on("click",...)
,this.checked
,这将返回true或false,具体取决于是否选中复选框。希望这些想法可以让你更接近你想要的地方。 干杯