I get the error message undefined variables for $id, $submit, and $delete. I also get the following error message for each input field:
<br /><b>Notice</b>: Undefined variable: first in <b>c:\phpfiles\finaldatabase.php</b> on line <b>118</b><br />
Database fields are: id, first,last, address, and possition. Any help would be appreciated.
with the following code:
<?php
$db = mysql_connect("localhost", "root","hal3000");
mysql_select_db("mydb",$db);
if ($submit) {
// here if no ID then adding else we're editing
if ($id) {
$sql = "UPDATE employees SET first='$first',last='$last',address='$address',pos ition='$position' WHERE id=$id";
} else {
$sql = "INSERT INTO employees (first,last,address,position) VALUES ('$first','$last','$address','$position')";
}
// run SQL against the DB
$result = mysql_query($sql);
echo "Record updated/edited!<p>";
} elseif ($delete) {
// delete a record
$sql = "DELETE FROM employees WHERE id=$id";
$result = mysql_query($sql);
echo "$sql Record deleted!<p>";
} else {
// this part happens if we don't press submit
if (!$id) {
// print the list if there is not editing
$result = mysql_query("SELECT * FROM employees",$db);
while ($myrow = mysql_fetch_array($result)) {
printf("<a href=\"%s?id=%s\">%s %s</a> \n", $_SERVER['PHP_SELF'], $myrow["id"], $myrow["first"], $myrow["last"]);
printf("<a href=\"%s?id=%s&delete=yes\">(DELETE)</a><br>", $_SERVER['PHP_SELF'], $myrow["id"]);
}
}
?>
<P>
<a href="<?php echo $_SERVER['PHP_SELF']?>">ADD A RECORD</a>
<P>
<form method="post" action="<?php echo $_SERVER['PHP_SELF']?>">
<?php
if ($id) {
// editing so select a record
$sql = "SELECT * FROM employees WHERE id=$id";
$result = mysql_query($sql);
$myrow = mysql_fetch_array($result);
$id = $myrow["id"];
$first = $myrow["first"];
$last = $myrow["last"];
$address = $myrow["address"];
$position = $myrow["position"];
// print the id for editing
?>
<input type=hidden name="id" value="<?php echo $id ?>">
<?php
}
?>
First name:<input type="Text" name="first" value="<?php echo $first ?>"><br>
Last name:<input type="Text" name="last" value="<?php echo $last ?>"><br>
Address:<input type="Text" name="address" value="<?php echo $address ?>"><br>
Position:<input type="Text" name="position" value="<?php echo $position ?>"><br>
<input type="Submit" name="submit" value="Enter information">
</form>
<?php
}
?>
</body>
</html>
undefined variables
