Firstly, here's the code for the webpage:
<html>
<body>
<form name="fm1" action="postform.php" method="post">
<p>Date: <input type="text" size="30" name="date1" /></p>
<p>Time: <input type="text" size="30" name="time1" /></p>
<p>Subject: <input type="text" size="30" name="subject1" /></p>
<p>Article: <input type="text" size="30" name="article1" /></p>
<p><input type="submit" value="Submit Form" /> <input type="reset" value="Reset Form" /></p>
</form>
</body>
</html>
The postform.php file is as under:
<?php
$conn = mysql_connect ("localhost","yourusername","yourpassword")
or die ("Connection to mySQL database failed!");
$db = mysql_select_db ("databasename", $conn)
or die ("Cannot connect to database!");
$query = "insert into mydata values ('$date1', '$time1', '$subject1', '$article1')";
$ex = mysql_query($query,$conn)
or die ("Query execution failed");
echo "$query";
?>
Of course, this assumes that you have created a table named MYDATA in your mySQL database.