HHQQ_夹子 HHQQ_夹子
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关于查找数据库内信息的问题 刚接触php自己捉摸怎么从数据库里匹配信息然后登陆 遇到了如下错误信息: Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in D:\Www_local\bbs2\code\login.php on line 19 翻译: mysql_fetch_array():提供的参数不是D有效的MySQL结果资源:\ \ \代码\ www_local BBS2 login.php线19 代码如下:(有问题的地方就在两个笑脸中间) <?php /* * PHP100Job v1.0 * Programmer : Msn/QQ [email protected] (925939) * http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fwww.php100.com&urlrefer=9838afb91cb8968e9129d99e1c334f16 Develop a project PHP - MySQL - Apache * Window 2003 - Preferences - PHPeclipse - PHP - Code Templates */ include("conn.php"); if($_GET[out]){ setcookie("cookie", "out"); echo "<script language=\"javascript\">location.href='login.php';</script>"; } if($_POST[id]){ $a=$_POST[id]; } $sql="SELECT * FROM `message` WHERE user=$a"; $query=mysql_query($sql); $array=mysql_fetch_array($query); if($array[1]){ $pw=md5($_POST[pw]); if($pw=='e1bfd762321e409cee4ac0b6e841963c'){ setcookie("cookie", "ok"); echo "<script language=\"javascript\">location.href='login.php';</script>"; } } include("head.php"); if($_COOKIE['cookie']!='ok'){ ?> <SCRIPT language=javascript> function Checklogin() { if (myform.id.value=="") { alert("请填写登录名"); myform.id.focus(); return false; } if (myform.pw.value=="") { alert("密码不能为空"); myform.pw.focus(); return false; } } </SCRIPT> <form action="" method="post" name="myform" onsubmit="return Checklogin();"> ID:<input type="text" name="id" /><br> PW:<input type="password" name="pw" /> <input type="submit" name="submit" value="登陆"/> </form> <? }else{ ?> <a href='?out=login'>退出</a> <? } ?>
[菜鸟问题]post和get这玩意到底怎么用。 先看如下这个: <?php /* * PHP100Job v1.0 * Programmer : Msn/QQ [email protected] (925939) * http://tieba.baidu.com/mo/q/checkurl?url=http%3A%2F%2Fwww.php100.com&urlrefer=9838afb91cb8968e9129d99e1c334f16 Develop a project PHP - MySQL - Apache * Window 2003 - Preferences - PHPeclipse - PHP - Code Templates */ include("conn.php"); if($_GET[out]){ setcookie("cookie", "out"); echo "<script language=\"javascript\">location.href='login.php';</script>"; } if($_POST[id]=='admin'){ $pw=md5($_POST[pw]); if($pw=='e1bfd762321e409cee4ac0b6e841963c'){ setcookie("cookie", "ok"); echo "<script language=\"javascript\">location.href='login.php';</script>"; } } include("head.php"); if($_COOKIE['cookie']!='ok'){ ?> <SCRIPT language=javascript> function Checklogin() { if (myform.id.value=="") { alert("请填写登录名"); myform.id.focus(); return false; } if (myform.pw.value=="") { alert("密码不能为空"); myform.pw.focus(); return false; } } </SCRIPT> <form action="" method="post" name="myform" onsubmit="return Checklogin();"> ID:<input type="text" name="id" /><br> PW:<input type="password" name="pw" /> <input type="submit" name="submit" value="登陆"/> </form> <? }else{ ?> <a href='?out=login'>退出</a> <? } ?> 。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。 这上边的代码中有一段是这样的: if($_GET[out]){ setcookie("cookie", "out"); echo "<script language=\"javascript\">location.href='login.php';</script>"; } if($_POST[id]=='admin'){ $pw=md5($_POST[pw]); if($pw=='e1bfd762321e409cee4ac0b6e841963c'){ setcookie("cookie", "ok"); echo "<script language=\"javascript\">location.href='login.php';</script>"; } } 其中有一个$_GET[out]和一个$_POST[id]=='admin'。 谁能结合上边的例子给我解释一下post和get到底是什么意思呢? 还有"<script language=\"javascript\">location.href='login.php';</script>";这段的意思是什么,有啥作用?
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