<?php$db = mysql_connect("localhost", "root","");
mysql_select_db("mydb",$db);$url1=mysql_query("select url from elmo where id=139");
$url2=mysql_fetch_row($url1);
$url=$url2['url'];echo $url;
?>
mysql_select_db("mydb",$db);$url1=mysql_query("select url from elmo where id=139");
$url2=mysql_fetch_row($url1);
$url=$url2['url'];echo $url;
?>
$url2=mysql_fetch_row($url1);
$url=$url1["url"];肯定不是用mysql_fetch_row吧,从数据库里取一个值赋给变量还需要这么折腾吗
$query=mysql_query("select * from elmo");
echo mysql_result($query,139,"url");
echo mysql_result($query,139,"url");
//==================================
效率极低的做法,还是mysql_fetch_row好。