我正在摆弄一个小统计工具。我的数据库看起来像这样:
ip | campaign_id | authorized | stamp
-----------------------------------------------------
182.74.723.1 | 1 | 0 | 12349210211
82.14.127.1 | 3 | 1 | 29834043899
我想说一句:
ID 为“X”的营销事件有“XXX”次点击(“XXX”已授权，“XXX”未授权)
到目前为止我的代码:
$query = "SELECT campaign_id, COUNT(ip) FROM stats GROUP BY campaign_id";
$result = mysql_query($query) or die(mysql_error());
// Print out result
while($row = mysql_fetch_array($result)) {
echo "There are <b>". $row['COUNT(ip)'] ." hits</b> on campaign with <b>ID ". $row['campaign_id'] ."</b> (HERE COMES THE PART I'M LOOKING FOR)";
echo "<br />";
}
现在的问题是:我找不到计算“auth”的不同值的解决方案。 如果有人能在这方面帮助我，我将非常高兴，在此先感谢!
最佳答案
试试这个 sql 查询:
SELECT campaign_id,
COUNT(ip) as tot,
sum(authorized=0) as a0,
sum(authorized=1) as a1,
....
FROM stats GROUP BY campaign_id
关于php - 简单的 PHP 和 MySQL 问题 - COUNT，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/5343407/