I'm crazy, why php doesn't transfer variable submitted by web form?

#1 (**permalink**) 04-06-2006, 11:21 AM

I had previously installed php-4.3.9 and apache-2.0.49 on my solaris9
server and written a php script for user login, it ran well until
today...:-(
today for some reasons I upgraded php to php-5.1.2, complied as
apache's DSO module, and I found the script couldn't work when being
accessed by IE. I didn't know why...It seemed php script hadn't
transfered variables submmitted by web form to itself...now the
following is my script:

<?php
if ($queryflag == 1) {
$ybn="admin";
$ybp="111";
$ybusername=$_POST["username"];
$ybuserpwd=$_POST["password"];
if ($ybusername==$ybn AND $ybuserpwd==$ybp){
session_start();
$_SESSION["admin"]=true;
header("location: testtest.php");
} else {
echo <<<EOM
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>login</title>
<style type="text/css">

</style>
</head>

<body>
<table width="200" border="0" align="center">
<tr>
<td height="68" colspan="2">
<form name="form1" method="post" action="login.php">
<table width="474" height="89" border="0"
background="image/log.gif">
<tr>
<td width="77" height="29"> </td>
<input type=hidden name=queryflag value=0>
<td width="114" valign="bottom"><input name="username"
type="text" id="username" size="15"></td>
<td width="42"> </td>
<td width="125" valign="bottom"><input name="password"
type="password" id="password" size="15"></td>
<td width="82" valign="bottom"><input name="imageField"
type="image" src="image/bt-login.gif" width="46" height="19" border="0"
onclick="this.form.queryflag.value=1"></td>
</tr>
<tr>
<td colspan="5"></td>
</tr>
<tr>
<td height="26" colspan="5"><span class="style7">username or
password error!</span></td>
</tr>
</table>
</form> </td>
</tr>
</table>
</body>
</html>
EOM;
}
} else if (!isset($queryflag)){
echo <<<EOM
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>login</title>
<style type="text/css">

</style>
</head>

<body>
<table width="200" border="0" align="center">
<tr>
<td height="68" colspan="2">
<form name="form1" method="post" action="login.php">
<table width="474" height="89" border="0"
background="image/log.gif">
<tr>
<td width="77" height="29"> </td>
<td width="114" valign="bottom"><input name="username"
type="text" id="username" size="15"></td>
<td width="42"> </td>
<input type=hidden name=queryflag value=0>
<td width="125" valign="bottom"><input name="password"
type="password" id="password" size="15"></td>
<td width="82" valign="bottom"><input name="imageField"
type="image" src="image/bt-login.gif" width="46" height="19" border="0"
onclick="this.form.queryflag.value=1"></td>
</tr>
<tr>
<td colspan="5"></td>
</tr>
<tr>
<td height="26" colspan="5"> </td>
</tr>
</table>
</form> </td>
</tr>
</table>
</body>
</html>
EOM;
}
?>

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