这段代码一直有异常,麻烦大神看下
程序员文章站
2023-12-28 16:44:10
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<a href ='index.php' >返回留言板</a><hr><hr> <?php /* * To change the template for this generated file go to * Window - Preferences - PHPeclipse - PHP - Code Templates */ require("conn.php"); $user=$_POST['user']; $title=$_POST['title']; $content=$_POST['content']; $sql_luck="insert into sny (id,user,title,content,lastDate)value('','$user','$title','$content',now())" $sql="SELECT user FROM sny WHERE user='$user'"; $query =mysql_query($sql); $rows=mysql_fetch_array($query); if((!empty($_POST['sub']))and($rows['user']==$user)){ //echo $content; echo "<script>alert('用户已存在,请重新输入');location.href='add2.php'</script>" ;exit; mysql_free_result($query);exit; } else{ mysql_query($sql_luck); echo"<script>alert('哟!成功!');location.href='index.php'</script>"; echo "插入成功"; } ?> <form action="add.php" method="post"> 用户:<input type="text" name="user" value="请输入用户名" size="20" maxlength="10"/><br/> 标题:<input type="text" name="title" value="请输入内容" size="40" maxlength="40"/><br/> 内容:<textarea name="content" rows="10" cols="50" wrap="off"> text</textarea> <br/> <input type="submit" name="sub" value="Release"/><br/> <form/>
解决方案
你if判断仔细看看里边缕缕。好么?