header（“Content-Type:text/html;charset=gb2312“）;
@mysql_connect（‘localhost‘‘root‘‘ebaeba‘）?or?die（“數(shù)據(jù)庫服務(wù)器連接失敗“）;
@mysql_select_db（“test“）?or?die（“數(shù)據(jù)庫不存在或不可用“）;



$uname?=?$_GET[‘userName‘];
//下面進(jìn)行數(shù)據(jù)庫查詢　　查找是不是有這一個(gè)用戶
//如果沒有查找到這個(gè)用戶名



$sql=“select?*?from?t1?where?name=‘“.$uname.“‘“;
$query=mysql_query（$sql）;
$row=mysql_fetch_object（$query）;

if（strlen（$uname）<6||strlen（$uname）>20）
{
???$msg=“用戶名必須是6至20個(gè)字符.“;
}
else
{
	
???if（$row==false）
???{
??????$msg=“該用戶名有效，可以使用！“;
???}
???else
???{
??????$msg=“對(duì)不起，此用戶名已經(jīng)存在，請(qǐng)更換用戶名注冊(cè)!“;
???}
}
echo?$msg?;
?>

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????3740??2013-10-22?22:07??codefans.net\phpdzswxt_v0.1\admin\add.php

?????文件???????3155??2013-10-22?22:04??codefans.net\phpdzswxt_v0.1\admin\admin.php

?????文件????????663??2013-03-24?20:39??codefans.net\phpdzswxt_v0.1\admin\admin_index.php

?????文件????????649??2013-10-22?22:05??codefans.net\phpdzswxt_v0.1\admin\del.php

?????文件????????236??2012-08-28?09:15??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\behaviors\disablehandles.htc

?????文件????????822??2012-08-28?09:15??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\behaviors\showtableborders.htc

?????文件???????2648??2012-08-28?09:16??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\fck_editorarea.css

?????文件???????4145??2012-08-28?09:16??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\fck_internal.css

?????文件???????1696??2012-08-28?09:16??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\fck_showtableborders_gecko.css

?????文件????????288??2012-08-28?09:15??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\block_address.png

?????文件????????293??2012-08-28?09:15??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\block_blockquote.png

?????文件????????229??2012-08-28?09:15??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\block_div.png

?????文件????????218??2012-08-28?09:15??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\block_h1.png

?????文件????????220??2012-08-28?09:15??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\block_h2.png

?????文件????????219??2012-08-28?09:15??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\block_h3.png

?????文件????????229??2012-08-28?09:15??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\block_h4.png

?????文件????????236??2012-08-28?09:15??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\block_h5.png

?????文件????????216??2012-08-28?09:15??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\block_h6.png

?????文件????????205??2012-08-28?09:15??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\block_p.png

?????文件????????223??2012-08-28?09:16??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\block_pre.png

?????文件????????184??2012-08-28?09:16??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\fck_anchor.gif

?????文件????????599??2012-08-28?09:16??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\fck_flashlogo.gif

?????文件????????105??2012-08-28?09:16??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\fck_hiddenfield.gif

?????文件?????????54??2012-08-28?09:16??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\fck_pagebreak.gif

?????文件???????1709??2012-08-28?09:16??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\css\images\fck_plugin.gif

?????文件???????1773??2012-08-28?09:16??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\dialog\common\fck_dialog_common.css

?????文件??????10481??2012-08-28?09:16??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\dialog\common\fck_dialog_common.js

?????文件?????????74??2012-08-28?09:16??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\dialog\common\images\locked.gif

?????文件????????104??2012-08-28?09:16??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\dialog\common\images\reset.gif

?????文件?????????75??2012-08-28?09:16??codefans.net\phpdzswxt_v0.1\admin\fckeditor\editor\dialog\common\images\unlocked.gif

............此處省略405個(gè)文件信息