时间:2021-07-01 10:21:17 帮助过:7人阅读
- php
- $connection = mysql_connect("localhost", "albert", "shhh");
- mysql_select_db("winestore", $connection);
- $result = mysql_query("SELECT cust_id, surname,
- firstname FROM customer", $connection);
- while ($row = mysql_fetch_array($result))
- {
- echo "ID:t{$row["cust_id"]}n";
- echo "Surnamet{$row["surname"]}n";
- echo "First name:t{$row["firstname"]}nn";
- }
- ?>
函数 mysql_fetch_array() 把查询结果的一行放入数组,可以同时用两种方式引用,例如 cust_id 可以同时用下面两种方式:$row["cust_id"] 或者$row[0] 。显然,前者的可读性要比后者好多了。
在PHP关联数组查询结果的多表连查中,如果两个列名字一样,最好用别名分开:
SELECT winery.name AS wname,
region.name AS rname,
FROM winery, region
WHERE winery.region_id = region.region_id;
列名的引用为:$row["wname"] 和 $row["rname"]。
在指定表名和列名的情况下,只引用列名:
SELECT winery.region_id
FROM winery
列名的引用为: $row["region_id"]。
聚集函数的引用就是引用名:
SELECT count(*)
FROM customer;
列名的引用为: $row["count(*)"]。
以上就是全部的关于PHP关联数组查询结果的具体操作步骤。
http://www.bkjia.com/PHPjc/446371.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/446371.htmlTechArticle大家也许对 以下就是具体的操作代码: ? php $ connection = mysql_connect ("localhost","albert","shhh"); mysql_select_db("winestore",$connection); $ result = mysql_qu...