javascript 在我的 php 页面上禁用重新加载和 f5
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Disable reload and f5 on my php page
提问by Ankit Agrawal
i am using a timer on my php page but when some refresh the page the timer start from begin. i want to disable f5 or reload option on my php page.
我在我的 php 页面上使用了一个计时器，但是当有人刷新页面时，计时器从头开始。我想在我的 php 页面上禁用 f5 或重新加载选项。
Thanks in advance
提前致谢
回答by Ankit Agrawal
I test it and it works.
我测试它并且它有效。
function disable_f5(e)
{
if ((e.which || e.keyCode) == 116)
{
e.preventDefault();
}
}
$(document).ready(function(){
$(document).bind("keydown", disable_f5);
});
回答by JoLoCo
Can't be done – that behaviour is controlled by the end user, and rightly so!
不能做——这种行为是由最终用户控制的，这是正确的！
The nearest thing you can do is to display a warning when the window is closed or refreshed, which the user can either decide to heed your warning and stick with the current page, or ignore your request and close/refresh anyway.
您可以做的最接近的事情是在窗口关闭或刷新时显示警告，用户可以决定注意您的警告并坚持当前页面，或者忽略您的请求并关闭/刷新。
See here: Alert when browser window closed accidentally
请参阅此处：浏览器窗口意外关闭时发出警报
回答by jwueller
It is impossible to disable such browser functionality. Would you like it if a page disabled your F5 key? I doubt it. If you are trying to implement some kind of security here, I suggest looking at proper server-side verification approaches.
不可能禁用此类浏览器功能。如果某个页面禁用了您的 F5 键，您会喜欢吗？我对此表示怀疑。如果您想在这里实现某种安全性，我建议您查看适当的服务器端验证方法。
