musher
08-04-2005, 06:43 AM
I was going thru a Tutorial some one had linked to on one of the post here but it seems to have errors and I was wondering if some one could take a look at it and give me a help fixing it. I found one problem and fixed it but still a few more. MySQL is set up fine.
http://webmonkey.wired.com/webmonkey/99/21/index3a_page6.html?tw=programming
here's my code:
<html>
<body>
<?php
$hostname_Con = "localhost";
$database_Con = "mydb";
$username_Con = "uid";
$password_Con = "pword";
$db = mysql_connect($hostname_Con, $username_Con, $password_Con) or die(mysql_error());
mysql_select_db($database_Con,$db);
if ($submit) {
// here if no ID then adding else we're editing
if ($id) {
$sql = "UPDATE employees SET first='$first',last='$last',address='$address',position='$position' WHERE id=$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 $PHP_SELF?>">ADD A RECORD</a>
<P>
<form method="post" action="<?php echo $PHP_SELF?>">
<?php
if ($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>
Errors that I'm getting:
Notice: Undefined variable: submit in c:\inetpub\wwwroot\test\AMD.php on line 10
Notice: Undefined variable: delete in c:\inetpub\wwwroot\test\AMD.php on line 20
Notice: Undefined variable: id in c:\inetpub\wwwroot\test\AMD.php on line 27
Notice: Undefined variable: id in c:\inetpub\wwwroot\test\AMD.php on line 41
and there is one thing in the code I don't understand and the tutorial doesn't explain (or I missed it) is on line 31
printf("<a href=\"%s?id=%s\">%s %s</a> \n", $_SERVER['PHP_SELF'], $myrow["id"], $myrow["first"], $myrow["last"]);
What does the %s do
http://webmonkey.wired.com/webmonkey/99/21/index3a_page6.html?tw=programming
here's my code:
<html>
<body>
<?php
$hostname_Con = "localhost";
$database_Con = "mydb";
$username_Con = "uid";
$password_Con = "pword";
$db = mysql_connect($hostname_Con, $username_Con, $password_Con) or die(mysql_error());
mysql_select_db($database_Con,$db);
if ($submit) {
// here if no ID then adding else we're editing
if ($id) {
$sql = "UPDATE employees SET first='$first',last='$last',address='$address',position='$position' WHERE id=$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 $PHP_SELF?>">ADD A RECORD</a>
<P>
<form method="post" action="<?php echo $PHP_SELF?>">
<?php
if ($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>
Errors that I'm getting:
Notice: Undefined variable: submit in c:\inetpub\wwwroot\test\AMD.php on line 10
Notice: Undefined variable: delete in c:\inetpub\wwwroot\test\AMD.php on line 20
Notice: Undefined variable: id in c:\inetpub\wwwroot\test\AMD.php on line 27
Notice: Undefined variable: id in c:\inetpub\wwwroot\test\AMD.php on line 41
and there is one thing in the code I don't understand and the tutorial doesn't explain (or I missed it) is on line 31
printf("<a href=\"%s?id=%s\">%s %s</a> \n", $_SERVER['PHP_SELF'], $myrow["id"], $myrow["first"], $myrow["last"]);
What does the %s do