1,连接数据库
<?php
$dbhost = 'localhost'; $dbuser = 'root'; //你的mysql用户名 $dbpass = '123456'; //你的mysql密码 $dbname = 'data'; //你的mysql库名
//连接本地数据库 $GLOBALS["conn"] = mysql_connect($dbhost,$dbuser,$dbpass);
//打开数据库 mysql_select_db($dbname,$GLOBALS["conn"]);
?>
2.读取数据库中,某一字段值
<?php
//读取一列数据 $sql="select * from ec_admin"; $result = mysql_query($sql,$GLOBALS["conn"]);
printf("用户名: %s<br>\n", mysql_result($result,3,"UserName")); printf("密码: %s<br>\n", mysql_result($result,3,"UserPass"));
?>
3,插入某一条数据
<?php
$sql="insert into ec_admin(UserName,UserPass) values('liugongxun2','jakemary2')"; $result=mysql_query($sql,$GLOBALS["conn"])or die(mysql_error());
?>
4,while循环
<?php
$sql="select * from ec_admin"; $result = mysql_query($sql,$GLOBALS["conn"]); while($myrow = mysql_fetch_row($result)) { printf("用户名%s %s密码<br />",$myrow[1],$myrow[2]); }
?>
5,do while循环
<?php
$sql="select * from ec_admin"; $result = mysql_query($sql,$GLOBALS["conn"]); if($myrow = mysql_fetch_array($result)) { do { printf("用户名%s %s密码<br />",$myrow["UserName"],$myrow["UserPass"]); }while($myrow = mysql_fetch_array($result)); } ?>
6,判断表单是否提交
<?php
if ($submit)
{}
?>
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