按钮点击创建mysql事件，每5分钟删除第一行表？

Question

这是我的按钮点击调用的PHP页面。显示

<?php 
$host="localhost"; // Host name 
$username="root"; // Mysql username 
$password=""; // Mysql password 
$db_name="parth"; // Database name 



$con = mysql_connect("localhost","root","") or die('Could not connect to MySQL server: ' . mysql_error()); 
//echo"Connected to MySQL server"; 
mysql_select_db("parth") or die('Could not connect to database' . mysql_error()); 
//echo "Connected to Database"; 



$sql="CREATE EVENT gold ON SCHEDULE AT CURRENT_TIMESTAMP + INTERVAL 3 SECOND 
DO 
DELETE FROM table LIMIT 1;"; 
mysql_query($sql); 
echo "done"; 
?> 

回声消息“完成”，但事件查询没有得到执行。我也给予了特权。 刚刚使用3秒进行开发。

Answer 1

试试这个：

<?php 
error_reporting(E_All); 
$sHost = "localhost"; 
$sUsername = "root"; 
$sPassword = ""; 
$sDb = "parth"; 

$con = mysql_connect($sHost, $sUsername, $sPassword) or die('Could not connect to MySQL server: ' . mysql_error()); 
echo"Connected to MySQL server"; 

mysql_select_db($sDb) or die('Could not connect to database' . mysql_error()); 
echo "Connected to Database"; 

$sResult = mysql_query("CREATE EVENT gold ON SCHEDULE EVERY 3 MINUTE STARTS CURRENT_TIMESTAMP + INTERVAL 3 SECOND DO DELETE FROM table LIMIT 1;") or die(mysql_error()); 
echo "Done";