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有點問題。我想在瀏覽器或標籤關閉時執行查詢,但是如果該頁面中存在任何按鈕或鏈接,並且我點擊其中的任何一個,那麼查詢也會執行。 。需要幫助這僅當瀏覽器關閉時才執行查詢
First.php
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1
/jquery.min.js"></script>
<script type="text/javascript">
$(document).bind('keypress', function(e) {
if (e.keyCode == 116){
validNavigation = true;
}
});
// Attach the event click for all links in the page
$("a").bind("click", function() {
validNavigation = true;
});
// Attach the event submit for all forms in the page
$("form").bind("submit", function() {
validNavigation = true;
});
// Attach the event click for all inputs in the page
$("input[type=submit]").bind("click", function() {
validNavigation = true;
});
window.addEventListener("beforeunload", function (e) {
if (!validNavigation) {
$.ajax({
url: 'logout.php',
type: 'POST',
async: false,
timeout: 4000
});
}
})
</script>
logout.php
<?php
$username = "root";
$password = "";
$hostname = "localhost";
$dbhandle = mysql_connect($hostname, $username, $password)
or die("Unable to connect to MySQL");
echo "Connected to MySQL<br>";
$selected = mysql_select_db("examples",$dbhandle)
or die("Could not select examples");
$result = mysql_query("DELETE FROM cars WHERE id='1'");
mysql_close($dbhandle);
?>
究竟有什麼啊你的問題? –
當用戶關閉瀏覽器時,我想執行刪除查詢。使用onbeforeload函數我可以實現它,但問題是查詢執行時,我按下按鈕或單擊鏈接。我只想在瀏覽器關閉時執行查詢 –
http://stackoverflow.com/questions/1631959/how-to-capture-the-browser-window-close-event –