Javascript确认&循环回声

Question

我有一个小问题,我用PHP while循环创建了一个删除按钮,如下所示:

while($something = mysql_fetch_array($sql_something)){

    $id = $something['id']
    echo '<a href="somewhere.php?id='.$id.'"><button onclick="delconfirm()">Delete</button></a>

}

这个echo是一些内容的删除按钮.但是我首先需要用户确认删除,这是onclick="delconfirm()"进来的地方.

我的确认看起来像这样:

function delconfirm()
{
    var r=confirm("Are you sure you want to delete this content?");

    if (r==true){

        // ...do nothing i guess? it needs to redirect using the PHP echo'd link...

    }
    else{

        window.location = "edit.php";

    }
}

但是,无论你按取消还是确定,它都会删除它.我怎样才能解决这个问题？

Answer 1

把它改成这个:

while($something = mysql_fetch_array($sql_something)){

    $id = $something['id']
    echo '<a href="somewhere.php?id='.$id.'"><button onclick="return delconfirm();">Delete</button></a>

}

然后你的功能:

function delconfirm()
{
    return confirm("Are you sure you want to delete this content?");
}

编辑:如果你想要一个更不引人注目的解决方案:

while($something = mysql_fetch_array($sql_something)){

    $id = $something['id']
    echo '<input type="button" value="Delete" data-id="$id" />';

}

然后一些javascript来绑定事件:

function bindButtons() {
    var buttons = document.getElementsByTagName("input");
    for (var i = 0; i < buttons.length; i++) {
        if (buttons[i].type == "button") {
            buttons[i].onclick = function () {
                location.href='somewhere.php?id=' + this.getAttribute("data-id");
            }
        }
    }
}

并window.onload按照Ian的建议将其绑定到:

window.onload = bindButtons;

注意:如果您使用的是jQuery,这个解决方案会更简单,更优雅.

工作jsFiddle