套用上一套修改课题的代码写了一个修改信息的代码,但是将内容修改提交后,再查询表中内容发现除了xuehao其他内容为空?
<?php
//######################学生信息修改1##########################
include "config.php";
include "header.php";
?>
<title>修改学生信息</title>
<?php
extract($_REQUEST);
$query="update $student_table set name='$name1' where xuehao='$xuehao'";
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
$query="update $student_table set sex='$sex1' where xuehao='$xuehao'";
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
$query=mysql_query("update $student_table set class='$class1' where xuehao='$xuehao'");
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
$query=mysql_query("update $student_table set password='$password2' where xuehao='$xuehao'");
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
$query=mysql_query("update $student_table set password1='$password3' where xuehao='$xuehao'");
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
$query="update $student_table set love='$love1' where xuehao='$xuehao'";
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
$query="update $student_table set telephone='$telephone1' where xuehao='$xuehao'";
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
$query="update $student_table set reward='$reward1' where xuehao='$xuehao'";
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
if($password2!=$password3)
{
echo"<p align=\"center\"><font color=\"#FF0000\"><b><big>输入的密码不一致,请重新输入。</big></b></font></p>";
echo "<meta http-equiv=\"refresh\" content=\"2;url=alter_student1.php\">";
exit;
}
if($result==true)
{
echo"<p align=\"center\"><font color=\"#FF0000\"><b><big>修改信息成功!</big></b></font>";
echo "<meta http-equiv=\"refresh\" content=\"1;url=index.php\">";
exit;
}
else
{
echo"<p align=\"center\"><font color=\"#FF0000\"><b><big>修改出错,请返回重新修改。</big></b></font></p>";
echo "<meta http-equiv=\"refresh\" content=\"1;url=alter_student.php\">";
exit;
}
?>
<?php include "foot.php";?>
<?php
//######################学生信息修改1##########################
include "config.php";
include "header.php";
?>
<title>修改学生信息</title>
<?php
extract($_REQUEST);
$query="update $student_table set name='$name1' where xuehao='$xuehao'";
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
$query="update $student_table set sex='$sex1' where xuehao='$xuehao'";
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
$query=mysql_query("update $student_table set class='$class1' where xuehao='$xuehao'");
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
$query=mysql_query("update $student_table set password='$password2' where xuehao='$xuehao'");
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
$query=mysql_query("update $student_table set password1='$password3' where xuehao='$xuehao'");
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
$query="update $student_table set love='$love1' where xuehao='$xuehao'";
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
$query="update $student_table set telephone='$telephone1' where xuehao='$xuehao'";
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
$query="update $student_table set reward='$reward1' where xuehao='$xuehao'";
mysql_query("set names 'GB2312'");
$result=mysql_query($query);
if($password2!=$password3)
{
echo"<p align=\"center\"><font color=\"#FF0000\"><b><big>输入的密码不一致,请重新输入。</big></b></font></p>";
echo "<meta http-equiv=\"refresh\" content=\"2;url=alter_student1.php\">";
exit;
}
if($result==true)
{
echo"<p align=\"center\"><font color=\"#FF0000\"><b><big>修改信息成功!</big></b></font>";
echo "<meta http-equiv=\"refresh\" content=\"1;url=index.php\">";
exit;
}
else
{
echo"<p align=\"center\"><font color=\"#FF0000\"><b><big>修改出错,请返回重新修改。</big></b></font></p>";
echo "<meta http-equiv=\"refresh\" content=\"1;url=alter_student.php\">";
exit;
}
?>
<?php include "foot.php";?>
看下你这个函数。先把变量打印出来看看值是不是空的。如果不是再说别的,我觉得很有可能是你表单哪个字母打错了。表示数据库更新处理不合理,没有必要每次都set names
贴出结果 if($password2!=$password3)
{
echo"<p align=\"center\"><font color=\"#FF0000\"><b><big>输入的密码不一致,请重新输入。</big></b></font></p>";
echo "<meta http-equiv=\"refresh\" content=\"2;url=alter_student1.php\">";
exit;
}
应放在修改数据的代码之前所有的修改数据指令宜合并在一起
并在实行时加入排错
$result=mysql_query($query) or die(mysql_error());php 已取消魔术转义,需注意自行对传入数据的转义处理
没看到你那有什么获取参数
//######################学生信息修改1##########################
include "config.php";
include "header.php";
?>
<title>修改学生信息</title>
<?php
extract($_REQUEST);
if($password2!=$password3)
{
echo"<p align=\"center\"><font color=\"#FF0000\"><b><big>输入的密码不一致,请重新输入。</big></b></font></p>";
echo "<meta http-equiv=\"refresh\" content=\"2;url=alter_student1.php\">";
exit;
}
$query="update $student_table set name='$name1',sex='$sex1' where xuehao='$xuehao'";
mysql_query("set names 'GB2312'");
$result=mysql_query($query)or die(mysql_error());
$query=mysql_query("update $student_table set class='$class1',password='$password2',password1='$password3' where xuehao='$xuehao'");
mysql_query("set names 'GB2312'");
$result=mysql_query($query)or die(mysql_error());
$query="update $student_table set love='$love1',telephone='$telephone1', reward='$reward1' where xuehao='$xuehao'";
mysql_query("set names 'GB2312'");
$result=mysql_query($query)or die(mysql_error());
if($result==true)
{
echo"<p align=\"center\"><font color=\"#FF0000\"><b><big>修改信息成功!</big></b></font>";
echo "<meta http-equiv=\"refresh\" content=\"1;url=index.php\">";
exit;
}
else
{
echo"<p align=\"center\"><font color=\"#FF0000\"><b><big>修改出错,请返回重新修改。</big></b></font></p>";
echo "<meta http-equiv=\"refresh\" content=\"1;url=alter_student.php\">";
exit;
}
print_r($_REQUEST);?>
<?php include "foot.php";?>这是运行结果,如图