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While Loop

Thread began 9/15/2009 11:42 am by Daryl | Last modified 9/16/2009 5:00 pm by Jason Byrnes | 2349 views | 5 replies |

DarylBeta Tester

While Loop

I am desperately trying to create an email form that has a number of checkboxes at the top of the page that allows the user to select multiple people (one email address per check box) or a department (multiple emails per checkbox).

I can get a single email address to echo from the database into the value fields for the people, but I am having issues getting all email addresses from specific column into a checkbox value.

I have been trying to learn to use the while loop but haven't managed to get it to work successfully yet.

To start with, I do not need to have checkboxes, but I do need a way that the user can select multiple people or groups of people to send the message to - if you have any other suggestions please let me know.

The method that I am using to loop the records is as follows;

php:
<?php

$connection 
mysql_connect("localhost""username""password") or die("Error connecting to database");
mysql_select_db("db_name"$connection);
$result mysql_query("SELECT * FROM units"$connection) or die("error querying database");?>



Then this for the first checkbox;

php:
<?php while($row_rs mysql_fetch_assoc($result)){

echo 
$row_rs['chair_email'].',';}?>



Then this for the second;

php:
<?php while($row_rs mysql_fetch_assoc($result)){

echo 
$row_rs['sec_email'].',';}?>



But unfortunately the second set doesn't produce any results from the recordset.

Where am I going wrong?

I'm sure there must be an easier way....

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Jason ByrnesWebAssist

When you get to the second loop the recordset is on the last record. It needs to be reset to the first record.


php:
<?php
mysql_data_seek
($rs0);
$row_rs mysql_fetch_assoc($rs);
while(
$row_rs mysql_fetch_assoc($result)){
echo 
$row_rs['sec_email'].',';}
?>
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DarylBeta Tester

Im getting there slowly!!

The first set of loops work - horray!!!

php:
<?php do { ?>

<?php 
if ($row_rs_users['lsdogs_chair']=="1")
echo 
$row_rs_users['email'].";"?>
<?php 
} while ($row_rs_users mysql_fetch_assoc($rs_users)); ?>

<?php mysql_data_seek($rs_users0);
$row_rs_users mysql_fetch_assoc($rs_users);
if (
$row_rs_users['lsdogs_sec']=="1"
{echo 
$row_rs_users['email'].";"?>
<?php 
} while ($row_rs_users mysql_fetch_assoc($rs_users)); ?>



And the begining of the second set of loops works too!!

php:
<?php do { ?>

<?php 
echo $row_rs_units['chair_email'].";";?>
<?php 
} while ($row_rs_units mysql_fetch_assoc($rs_units)); ?>



But unfortunately the rest of that group of loops doesn't :0(

php:
<?php mysql_data_seek($rs_units0);

$row_rs_units mysql_fetch_assoc($rs_units);{
echo 
$row_rs_units['sec_email'].";"?>
<?php 
} while ($row_rs_units mysql_fetch_assoc($rs_units)); ?>



So what am I doing wrong then.....?

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Jason ByrnesWebAssist

This line of code does not look right:

php:
$row_rs_units = mysql_fetch_assoc($rs_units);{





the "{" at the end should cause an error change it to:

php:
$row_rs_units = mysql_fetch_assoc($rs_units);
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DarylBeta Tester

the reason for the

php:
{

is beacuse the next part is the

php:
echo

followed by

php:
}

and then the

php:
while

.

So I assume that I would need to remove the closing one too?

I have been through the code and have removed all of the

php:
{ }

which has not changed the output at all.

After the second set of loops, the remaining ones just show the first record only.

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Jason ByrnesWebAssist

this code does not start a loop:
$row_rs_units = mysql_fetch_assoc($rs_units);{



You need to add another do { command:

php:
<?php mysql_data_seek($rs_units0);

$row_rs_units mysql_fetch_assoc($rs_units);
?>
<?php 
do {
echo 
$row_rs_units['sec_email'].";"?>
<?php 
} while ($row_rs_units mysql_fetch_assoc($rs_units)); ?>
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