add a new set of data and store into database - php

Question

cannot find out what is the problem...for example i want to add 2 row of data...when i press the + button...my data just typed will gone(looks like refresh)...and database will only store the 2nd row of data...1st one will not store. please help me find out the answer. thank you~
<?php if($_POST['btnPlus1'])
$_SESSION['count1'] += 1;
else if($_POST['btnMinus1'])
$_SESSION['count1'] -= 1;
$AddEducationalQ = "INSERT INTO tbleducational(Id,University,Level,Specialization,Year) VALUES('".$_POST['txtStaffIc']."','".strtoupper($_POST['txtUniversity'])."','".strtoupper($_POST['sLevel'])."','".strtoupper($_POST['txtSpecialization'])."','".$_POST['txtYear']."')";
$AddEducationalResult = mysql_query($AddEducationalQ,$link); ?>
<tr>
<td>
<fieldset>
<legend>Educational Background</legend>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td>
<?php
for($tempfield = 1; $tempfield <= $_SESSION['count1']; ++$tempfield)
{?>
<fieldset>
<legend><?php echo $tempfield ?></legend>
<table width="200" border="0">
<tr>
<td>University</td>
<td>Level</td>
<td>Specialization</td>
<td>Year Graduated</td>
</tr>
<tr>
<td>
<input type="text" name="txtUniversity" id="txtUniversity" /></td>
<td>
<select name="sLevel" id="sLevel">
<option></option>
<option>Diploma</option>
<option>Degree</option>
<option>Master</option>
<option>Doctor</option>
</select>
</td>
<td>
<input type="text" name="txtSpecialization" id="txtSpecialization" />
</td>
<td>
<input type="text" name="txtYear" id="txtYear" />
</td>
</tr>
</table>
</fieldset>
<?php
}?>
</td>
</tr>
<tr>
<td colspan="4" align="center"><input type="submit" name="btnPlus1" id="btnPlus1" value="+" /> <input type="submit" name="btnMinus1" id="btnMinus1" value="-" /></td>
</tr>
</table>
</fieldset>
</td>
</tr>

Answer 1

Ok first you'll have to change your form element to:
<form method="post" action="filename.php" accept-charset="utf-8">
Make sure you change filename.php to the filename of this code.
Now you'll have to make a choice. You can either continue with mysql_*, which is deprecated and extremely insecure! Or you can upgrade your code to PDO() instead.
If you wish to continue with mysql_*, change your PHP part to:
if(isset($_POST['txtStaffIc'], $_POST['txtUniversity'], $_POST['sLevel'], $_POST['txtSpecialization'], $_POST['txtYear'])){
$AddEducationalQ = "INSERT INTO tbleducational(Id,University,Level,Specialization,Year) VALUES('".$_POST['txtStaffIc']."','".strtoupper($_POST['txtUniversity'])."','".strtoupper($_POST['sLevel'])."','".strtoupper($_POST['txtSpecialization'])."','".$_POST['txtYear']."')";
mysql_query($AddEducationalQ,$link) or die(mysql_error());
echo "Data succesfully added to database.";
}
If you wish to upgrade to PDO() instead, change your PHP part to:
if(isset($_POST['txtStaffIc'], $_POST['txtUniversity'], $_POST['sLevel'], $_POST['txtSpecialization'], $_POST['txtYear'])){
$AddEducationalQ = "INSERT INTO tbleducational(Id,University,Level,Specialization,Year) VALUES(':txtStaffIc',':txtUniversity',':sLevel',':txtSpecialization',':txtYear')";
$prepare = $pdo->prepare($AddEducationalQ);
$prepare->bindValue(":txtStaffIc",$_POST['txtStaffIc']);
$prepare->bindValue(":txtUniversity",strtoupper($_POST['txtUniversity']));
$prepare->bindValue(":sLevel",strtoupper($_POST['sLevel']));
$prepare->bindValue(":txtSpecialization",strtoupper($_POST['txtSpecialization']));
$prepare->bindValue(":txtYear",$_POST['txtYear']);
if($prepare->execute()){
echo "Data succesfully added to database.";
} else {
print_r($prepare->errorInfo());
}
}
Also make sure you change your database connection file to:
<?php
$dbhost = ""; //Enter MySQL server host
$dbuser = ""; //Enter MySQL database user
$dbpass = ""; //Enter MySQL database pass
$dbname = ""; //Enter MySQL database name
$pdo = new PDO("mysql:host=".$dbhost.";dbname=". $dbname, $dbuser, $dbpass);
?>
On a last note I should add that I didn't see any require database connection file inside your PHP code. I assume you simply didn't post this.