修改信息成功后内容未变
系统有4处错误提示，分别在第15、17、25、26行。Undefined variable number1（PS：我发现我一个月都在问这个问题……惭愧）
<?php<br /> include "conn.php";<br /> include "admin_header.php";<br /> extract($_REQUEST);<br /> <br /> $query="update $jiaoshi_table set subject='$newsubject',teacher='$newteacher',zhicheng='$newzhicheng',specialized='$newspecialized',code='$newcode',intrduction='newintroduction' where id='$id'";<br /> mysql_query("set names 'GB2312'");<br /> $result=mysql_query($query);<br /> <br /> <br /> $query="select number as sn,surplus as ssn from $jiaoshi_table where id='$id'";<br /> mysql_query("set names 'GB2312'");<br /> $result=mysql_query($query);<br /> $row=mysql_fetch_array($result);<br /> if($number1<$row['sn'])<br /> {<br /> if($number1<($row['sn']-$row['ssn']))<br /> {<br /> echo"<p align=\"center\"><font color=\"#FF0000\"><b><big>人数不能少于现已选题人数，人数列修改失败！</big></b></font>";<br /> echo"<meta http-equiv=\"refresh\" content=\"2;url=alter_keti.php\">";<br /> exit;<br /> }<br /> else<br /> {<br /> $query2=mysql_query("update $jiaoshi_table set number='$number1' where id='$id'");<br /> $query3=mysql_query("update $jiaoshi_table set surplus=surplus-($row[sn]-$number1) where id='$id'");<br /> mysql_query("set names 'GB2312'");<br /> $result1=mysql_query($query3);<br /> }<br /> }<br /> else<br /> {<br /> $query4=mysql_query("update $jiaoshi_table set number='$number1' where id='$id'");<br /> $query5=mysql_query("update $jiaoshi_table set surplus=surplus+($number1-$row[sn]) where id='$id'");<br /> mysql_query("set names 'gb2312'");<br /> $result2=mysql_query($query5);<br /> }<br /> if($result==true)<br /> {<br /> echo"<p align=\"center\"><font color=\"#FF0000\"><b><big>修改课题成功！</big></b></font>";<br /> echo "<meta http-equiv=\"refresh\" content=\"1;url=alter_keti.php\">";<br /> exit;<br /> }<br /> else<br /> {<br /> echo"<p align=\"center\"><font color=\"#FF0000\"><b><big>修改出错，请返回重新修改</big></b></font></p>";<br /> echo "<meta http-equiv=\"refresh\" content=\"1;url=alter_keti.php\">"; <br /> exit;<br /> }<br /> <br />?><br /><?php include "foot.php";?>
