[SOLVED] Why isn't My Database Updating ?

god_zun · September 11, 2008

I have a code that is supposed to update the shipping status of products on my site, however it everything seems to work except that function. When I go through the program it says the record has been updated, but nothing takes effect. Can someone give me any suggestions?

list_shippingrecords.php


<?php
$host="localhost"; // Host name 
$username="intranet"; // Mysql username 
$password="int$123"; // Mysql password 
$db_name="Intranet"; // Database name 
$tbl_name="shipping"; // Table name

// Connect to server and select database.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

$sql="SELECT * FROM $tbl_name";
$result=mysql_query($sql);
?>
<table width="400" border="0" cellspacing="1" cellpadding="0">
<tr>
<td>
<table width="400" border="1" cellspacing="0" cellpadding="3">
<tr>
<td colspan="4"><strong>List data from mysql </strong> </td>
</tr>

<tr>
<td align="center"><strong>Date</strong></td>
<td align="center"><strong>Merchant</strong></td>
<td align="center"><strong>Tracking Number</strong></td>
<td align="center"><strong>Status</strong></td>
</tr>
<?php
while($rows=mysql_fetch_array($result)){
?>
<tr>
<td><?php echo $rows['Date']; ?></td>
<td><?php echo $rows['Merchant']; ?></td>
<td><?php echo $rows['TrackingNum']; ?></td>
<td><?php echo $rows['rest_cat']; ?></td>

// link to update.php and send value of id 
<td align="center"><a href="update.php?ID=<?php echo $rows['ID']; ?>">update</a></td>
</tr>
<?php
}
?>
</table>
</td>
</tr>
</table>
<?php
mysql_close();
?>

update.php


<?php
$host="localhost"; // Host name 
$username="intranet"; // Mysql username 
$password="int$123"; // Mysql password 
$db_name="Intranet"; // Database name 
$tbl_name="shipping"; // Table name

// Connect to server and select database.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

// get value of id that sent from address bar
$ID=$_GET['ID'];


// Retrieve data from database 
$sql="SELECT * FROM $tbl_name WHERE ID='$ID'";
$result=mysql_query($sql);

$rows=mysql_fetch_array($result);
?>
<table width="400" border="0" cellspacing="1" cellpadding="0">
<tr>
<form name="form1" method="post" action="update_ac.php">
<td>
<table width="100%" border="0" cellspacing="1" cellpadding="0">
<tr>
<td> </td>
<td colspan="3"><strong>Update data in mysql</strong> </td>
</tr>
<tr>
<td align="center"> </td>
<td align="center"> </td>
<td align="center"> </td>
<td align="center"> </td>
</tr>
<tr>
<td align="center"> </td>
<td align="center"><strong>Date</strong></td>
<td align="center"><strong>Merchant</strong></td>
<td align="center"><strong>Tracking Number</strong></td>
</tr>
<tr>
<td> </td>
<td align="center"><input name="name" type="text" id="name" value="<?php echo $rows['Date']; ?>"></td>
<td align="center"><input name="lastname" type="text" id="lastname" value="<?php echo $rows['Merchant']; ?>" size="15"></td>
<td><input name="email" type="text" id="email" value="<?php echo $rows['TrackingNum']; ?>" size="15"></td>
</tr>
<tr>
<td> </td>
<td><input name="ID" type="hidden" id="ID" value="<?php echo $rows['ID']; ?>"></td>
<td align="center"><input type="submit" name="Submit" value="Submit"></td>
<td> </td>
</tr>
</table>
</td>
</form>
</tr>
</table>

<?php

// close connection 
mysql_close();

?>

update_ac.php


<?php
$host="localhost"; // Host name 
$username="intranet"; // Mysql username 
$password="int$123"; // Mysql password 
$db_name="Intranet"; // Database name 
$tbl_name="shipping"; // Table name

// Connect to server and select database.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

// update data in mysql database 
$sql="UPDATE $tbl_name SET Date='$Date', Merchant='$Merchant', TrackingNum='$TrackingNum' WHERE ID='$ID'";
$result=mysql_query($sql);

// if successfully updated. 
if($result){
echo "Successful";
echo "<BR>";
echo "<a href='list_shippingrecords.php'>View result</a>";
}

else {
echo "ERROR";
}

?>

pocobueno1388 · September 11, 2008

Change

$result=mysql_query($sql);

To

$result=mysql_query($sql)or die(mysql_error() ."<p>With Query: $sql");

DeanWhitehouse · September 11, 2008

Add die statements to all of your sql querys , when debugging.

god_zun · September 11, 2008

Okay the die statements have been added

DeanWhitehouse · September 11, 2008

Then read the errors produced by them and fix them

god_zun · September 11, 2008

no errors were produced. It says that the update was successful, however they don't show on the database.

DeanWhitehouse · September 11, 2008

$sql="UPDATE $tbl_name SET Date='$Date', Merchant='$Merchant', TrackingNum='$TrackingNum' WHERE ID='$ID'";

Where is $date , etc. defined?

god_zun · September 11, 2008

Within a separate script

DeanWhitehouse · September 11, 2008

Vars dont carry over scripts like that .

god_zun · September 11, 2008

okay, I've added the variable within the update_ac script ad still no luck.


<?php


$Date=$_POST['Date']; 
$Merchant=$_POST['Merchant'];
$Tracking=$_POST['TrackingNum']; 

$host="localhost"; // Host name 
$username="intranet"; // Mysql username 
$password="int$123"; // Mysql password 
$db_name="Intranet"; // Database name 
$tbl_name="shipping"; // Table name

// Connect to server and select database.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

// update data in mysql database 
$sql="UPDATE $tbl_name SET Date='$Date', Merchant='$Merchant', TrackingNum='$TrackingNum' WHERE ID='$ID'";
$result=mysql_query($sql)or die(mysql_error() ."<p>With Query: $sql");


// if successfully updated. 
if($result){
echo "Successful";
echo "<BR>";
echo "<a href='list_shippingrecords.php'>View result</a>";
}

else {
echo "ERROR";
}

?>

DeanWhitehouse · September 11, 2008

Ok, you have no clue what your doing , do you?

When you post a var , you retrieve it using $_POST[''];, and what you put in between the braces is the name of the field the value is in.

e.g.


<input name="name" type="text" id="name" value="<?php echo $rows['Date']; ?>">
//The post var would be $_POST['name']; , not $_POST['date'];

PFMaBiSmAd · September 11, 2008

Turning on full php error_reporting and display_errors would expose which variables are not being set due to the form field names, the $_POST names, and the variable names that do not match.

god_zun · September 11, 2008

Vars defined and still no success. Here's what I have now for update_ac.php

<?php
$Date=$_POST['Date'];
$Merchant=$_POST['Merchant'];
$TrackingNum=$_POST['TrackingNum]'

$host="localhost"; // Host name 
$username="intranet"; // Mysql username 
$password="int$123"; // Mysql password 
$db_name="Intranet"; // Database name 
$tbl_name="shipping"; // Table name


// Connect to server and select database.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

// update data in mysql database 
$sql="UPDATE $tbl_name SET Date='$Date', Merchant='$Merchant', TrackingNum='$TrackingNum' WHERE ID='$ID'";
$result=mysql_query($sql)or die(mysql_error() ."<p>With Query: $sql");


// if successfully updated. 
if($result){
echo "Successful";
echo "<BR>";
echo "<a href='list_shippingrecords.php'>View result</a>";
}

else {
echo "ERROR";
}

?>

DeanWhitehouse · September 11, 2008

omg, PLEASE read what i wrote above about post values ^^, then fix your code .

Btown2 · September 11, 2008

I dont know if this is the main issue, but you have a syntax error in your last post var.

You have $TrackingNum=$_POST['TrackingNum]'

it should be

$TrackingNum=$_POST['TrackingNum'];

Also just saw somthing else.

I think your if statement that checks $result is a tautology. Since $result wouldn't be null because it would evaluate as true all the time, thus lieing to you. But i am rusty on my php so i could be wrong.

god_zun · September 11, 2008

Blade the VARS is fixed, and I still get the error.

here is the form...


<?php
$host="localhost"; // Host name 
$username="intranet"; // Mysql username 
$password="int$123"; // Mysql password 
$db_name="Intranet"; // Database name 
$tbl_name="shipping"; // Table name

// Connect to server and select database.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

// get value of id that sent from address bar
$ID=$_GET['ID'];


// Retrieve data from database 
$sql="SELECT * FROM $tbl_name WHERE ID='$ID'";
$result=mysql_query($sql)or die(mysql_error() ."<p>With Query: $sql");


$rows=mysql_fetch_array($result);
?>
<table width="400" border="0" cellspacing="1" cellpadding="0">
<tr>
<form name="form1" method="post" action="update_ac.php">
<td>
<table width="100%" border="0" cellspacing="1" cellpadding="0">
<tr>
<td> </td>
<td colspan="3"><strong>Update data in mysql</strong> </td>
</tr>
<tr>
<td align="center"> </td>
<td align="center"> </td>
<td align="center"> </td>
<td align="center"> </td>
</tr>
<tr>
<td align="center"> </td>
<td align="center"><strong>Date</strong></td>
<td align="center"><strong>Merchant</strong></td>
<td align="center"><strong>Tracking Number</strong></td>
</tr>
<tr>
<td> </td>
<td align="center"><input name="Date" type="text" id="Date" value="<?php echo $rows['Date']; ?>"></td>
<td align="center"><input name="Merchant" type="text" id="Merchant" value="<?php echo $rows['Merchant']; ?>" size="15"></td>
<td><input name="TrackingNum" type="text" id="TrackingNum" value="<?php echo $rows['TrackingNum']; ?>" size="15"></td>
</tr>
<tr>
<td> </td>
<td><input name="ID" type="hidden" id="ID" value="<?php echo $rows['ID']; ?>"></td>
<td align="center"><input type="submit" name="Submit" value="Submit"></td>
<td> </td>
</tr>
</table>
</td>
</form>
</tr>
</table>

<?php

// close connection 
mysql_close();

?>

Along with update_ac.php...


<?php
$Date=$_POST['Date'];
$Merchant=$_POST['Merchant'];
$TrackingNum=$_POST['TrackingNum'];

$host="localhost"; // Host name 
$username="intranet"; // Mysql username 
$password="int$123"; // Mysql password 
$db_name="Intranet"; // Database name 
$tbl_name="shipping"; // Table name


// Connect to server and select database.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

// update data in mysql database 
$sql="UPDATE $tbl_name SET Date='$Date', Merchant='$Merchant', TrackingNum='$TrackingNum' WHERE ID='$ID'";
$result=mysql_query($sql)or die(mysql_error() ."<p>With Query: $sql");


// if successfully updated. 
if($result){
echo "Successful";
echo "<BR>";
echo "<a href='list_shippingrecords.php'>View result</a>";
}

else {
echo "ERROR";
}

?>

DeanWhitehouse · September 11, 2008

where is $ID defined??

WHERE ID='$ID'"

god_zun · September 11, 2008

Problem Solved. Please forgive my ignorance, I am new to PHP programming, and may find myself in here often. Thanks for the assistance.

The problem was that I had the ID var defined as GET instead of POST on a separate page. Once I moved it to the update_ac.php page and switched it to POST, it worked. Thanks for the map and directions.

DeanWhitehouse · September 11, 2008

Ok, click solved at the bottom of the page.

Also try out some tutorials here

http://www.w3schools.com/PHP/

and

http://www.tizag.com/phpT/

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[SOLVED] Why isn't My Database Updating ?

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