In PHP 4.2.0, the 'register_globals' setting default changed to
be off. See http://www.php.net/release_4_2_0.php for more info.
We are sorry about the inconvenience, but this change was a necessary
part of our efforts to make PHP scripting more secure and portable.

I try to On the register_globals from php.ini but it still could not work on php 4.2.1? It is still the same. But php 4.1.1 works well with register_globals Off.

can you give us a copy of the script that fails?

Here is the scripts that I followed from a tutorials. Which is just a simple one for the test.

To input I create a datain.htm
<html>
<body>
<form method="post" action="../learn/datain.php">
        First Name:<input type="text" name="first"><br>
        Last Name:<input type="text" name="last"><br>
        Nick Name:<input type="text" name="nickname"><br>
        E-mail:<input type="text" name="email"><br>
        Salary:<input type="text" name="salary"><br>
        <input type="Submit" name="submit" value="Enter Information"></form>
</html>

Then for the processing would be datain.php
<html>
<?php

$db = mysql_connect("hostname", "username", "password") or exit("No connection");
        mysql_select_db("learn",$db) or exit("No database to connect");
        $sql = "INSERT INTO person (firstname, lastname, nick, email, salary) VAL
UES ('$first','$last','$nickname','$email','$salary
')";
        $result = mysql_query($sql);
        echo "Thank you! Information entered.\n";
?>
</html>

To view the data
<html>
<?php
$db = mysql_connect("hostname", "username", "password") or exit("Could not connect");
mysql_select_db("learn",$db) or exit ("Database not choosen");
$result = mysql_query("SELECT * FROM person",$db);
echo "<table>";
echo"<tr><td><b>Full Name:</b><td><b>Nick Name:</b><td><b>Salary:</b></tr>";
while ($myrow = mysql_fetch_array($result))
        {
        echo "<tr><td>";
        echo $myrow["firstname"];
        echo " ";
        echo $myrow["lastname"];
        echo "<td>";
        echo $myrow["nick"];
        echo "<td>";
        echo $myrow["salary"];
}
echo "</table>";
mysql_free_result ($result);
?>
</html>

Please guide!

Thanks

This is definitely the register_globals issue, you might to check with phpinfo() the path where PHP searches for your php.ini file and make sure you modified the correct one.
(phpinfo() also shows the settings of the register_globals directive, so you might want to check that too there).

Derick

Okay, I got it fix. It is the php.ini file which is not in PATH. 

Thank you everyone!