<?php
$fuwuqi =
"127.0.0.1";
//服务器IP
$yonghuming =
"root";
//数据库用户
$mima =
"UFJLSD0GEX24TZN6";
//数据库密码
$shujukuming =
"4cn";
//数据库名称
$link =
mysql_connect($fuwuqi,$yonghuming,$mima);
mysql_select_db($shujukuming,$link) or die
("不存在数据库:".$shujukuming);
//mysql_query("SET NAMES ".yonghuming);
//添加数据
$sql = "insert into admin
(username) values ('admin3') ";
mysql_query($sql) or die
("错误".mysql_error());
echo "添加成功";
//关键是查询
$sql = "select * from admin ";
$result = mysql_query($sql) or die
("错误".mysql_error());
$rows=mysql_num_rows($result);
while($total = mysql_fetch_array($result))
{
echo "<a
href=\"/".$total[username]."\">".$total[username]."</a>
";
}
echo $_GET["admin"]; //5
echo $_SERVER['HTTP_HOST'];
//localhost:8032
echo $_SERVER['QUERY_STRING'];
//admin=5&kk=1
$ur =
$_SERVER['QUERY_STRING'];
if (strpos($ur,"'")
<> ""
&& strpos($ur,"'")
>= 0 )
{
echo
"<br>不能存在单引号".strpos($ur,"'");
}
else
{
echo
"<br>无双引号".strpos($ur,"'");
}
function CuteStr($str,$num)
{
if(strlen($str)
> $num)
{
return
substr($str,0,$num);
}
else
{
return
$str;
}
}
echo CuteStr("阿斯达岁的萨dadsad",10)
?>
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