Where Clause Does Not Seem To Be Working - php

I have a inner join statment which is working 90% as it is displaying what I need it to display but unfortunately it is not displaying to the right user logged in. It is being displayed to whoever logs into my system. Here is the code:
<?php
$result = mysql_query("SELECT * FROM Agendas INNER JOIN Meetings ON Meetings.secretary WHERE Agendas.approval = 'disapproved' AND secretary = '". $_SESSION['username']."'")
or die(mysql_error()); ;
if (mysql_num_rows($result) == 0) {
echo 'You Have No New Messages';
} else {
while($info = mysql_fetch_array($result))
{
echo "<tr>";
echo "<td><br/>" .'Title: '. $info['title']." </td>";
echo "<td><br/>" .'Approved: '. $info['approval']. "</td>";
echo "<td><br/>" .'Reason: '. $info['reason']."</td>";
echo "<hr>";
}
}
echo "</tr>";
echo "</table>";
?>
my database tables look like this:
Meetings: meeting_id, title, chairperson, secretary, tof, occurances, action
Agendas: agenda_id, subject, duration, meeting_id, approval, reason.
thanks soo much for any help :)

i think you're doing something wrong in the join clause. how about this:
$result = mysql_query("SELECT * FROM Agendas INNER JOIN Meetings ON Agendas.meeting_id = Meetings.meeting_id WHERE Agendas.approval = 'disapproved' AND secretary = '". $_SESSION['username']."'")
or die(mysql_error());

Related

Joining three tables and displaying value using php

I have used join and was able to get output table in phpmyadmin using this query :
$query = "SELECT members.usn, members.name, events.ename FROM members JOIN participant ON members.usn = participant.usn JOIN events ON events.eid = participant.eid WHERE members.usn='.$usn.'";
$result = $conn->query($query);
The Output was
usn
name
ename
7DC18CS005
John
Robo Wars
I used PHP to display this in my homepage for specific user by maintaining usn in their SESSION.
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
echo '<tr>';
echo '<td>';
echo $row[0];
echo '</td>';
echo '<td>';
echo $row[1];
echo '</td>';
echo '<td>';
echo $row[2];
echo '</td>';
echo '</tr>';
}
} else {
echo "No Members[Connected DB]";
}
But the output gives me
"No Members[Connected DB]"
instead of expected output which is
usn
name
ename
7DC18CS005
John
Robo Wars
Thank you!
You have a typo in the query. Looks like you are trying to concatenate $usn to the query but you got it wrong.
Change
$query = "SELECT members.usn, members.name, events.ename FROM members JOIN participant ON members.usn = participant.usn JOIN events ON events.eid = participant.eid WHERE members.usn='.$usn.'";
To
$query = "SELECT members.usn, members.name, events.ename FROM members JOIN participant ON members.usn = participant.usn JOIN events ON events.eid = participant.eid WHERE members.usn='$usn'";

Grabbing info from two different tables, assistance

I am trying to make a members page. For the rank it shows numbers so I made another table that has the rank id (1,2,3 etc) and added a name to it also.
Here is my code.
<?php
$getCoB = mysql_query("SELECT * FROM `members`
WHERE `CoB` = '1' && `user_state` = '1' ORDER BY `id`");
$id = ($getCoB['rank']);
$rankInfo = mysql_query("SELECT * FROM `ranks` WHERE `id` = '".$id."'");?>
<h2 class="title">Council of Balance members</h2>
<style>tr:nth-of-type(odd) { background-color:#F0F0F0;}</style>
<div style='padding:5px;'>
<?php
if(mysql_num_rows($getCoB) == 0)
{
echo "There are no Council of Balance members.";
} else {
echo "<table cellpadding=20 width=100%>";
while($row = mysql_fetch_assoc($getCoB))
{
echo "<tr><td style='background-color:transparent;'><b>". $row['name']
. "</b></td><td>Rank: ".$rankInfo['name']." <br/> Role: ". $row['role']."</td>";
}
echo "</table>";
}
?>
The problem is rankInfo['name'] is not showing up. I tried to do something on this line while($row = mysql_fetch_assoc($getCoB)) and tried to make it something like this while($row = mysql_fetch_assoc($getCoB)) || while($rank = mysql_fetch_assoc($rankInfo) and changed this part <td>Rank: ". $rankInfo['name'] . " to this <td>Rank: ". $rank['name'] . " but I end up with an error. If I leave it like it is, it just shows Rank: without the name I added into my database.
You can combine your two queries into one using an inner join.
<?php
$getCoB = mysql_query("SELECT m.name as member_name, m.role, r.name as rank_name
FROM `members` as m INNER JOIN `ranks` as r ON m.rank = r.id
WHERE `CoB` = '1' && `user_state` = '1' ORDER BY m.id");
?>
Because of how INNER JOIN works, this will only display members who have corresponding records in the ranks table. If there are some members that you want to display that have no rank record, use LEFT JOIN instead.
Then when you echo out the data, be sure to refer to the item you have fetched ($row) each time. In your code, you are referring to $rankInfo['name'], where $rankInfo is not a variable, but a mysql query from which no rows have been fetched.
while($row = mysql_fetch_assoc($getCoB)) {
echo "<tr><td style='background-color:transparent;'><b>". $row['member_name']
. "</b></td><td>Rank: ". $row['rank_name'] . " <br/> Role: " . $row['role'] . "</td>";
}

Sum Columns in PHP table

I have an index.php with various SQL queries which helps me find the balances of the respective accounts. This is a TRIAL BALANCE so I need to SUM all the amount in the Debit Column and SUM all the amount in the Credit Column so that I can Tally both of them. Please help me with the SUM. All values are echoed to a PHP table.
index.php
<?php
echo "<table border='1'>";
echo "<tr><th width='150'>Account</th><th width='200'>Debit</th><th width='200'>Credit</th></tr>";
echo "<tr><th align='left'>Cash & Bank</th></tr>";
//List the Banks first with their respective balances.
$bank_sql = "SELECT * FROM bank";
$bank_query = mysqli_query($conn, $bank_sql);
while ($bank_result = mysqli_fetch_array($bank_query)){
$bank_name = $bank_result['name'];
$sql= "SELECT SUM(amount) FROM account WHERE (mode='$bank_name' AND status='completed') AND (type='p' OR type='r')";
$sql_query = mysqli_query($conn, $sql);
while($sql_result = mysqli_fetch_array($sql_query)){
$sql_value = $sql_result['SUM(amount)'];
}
$sql1 = "SELECT SUM(amount) FROM account WHERE (mode='$bank_name' AND status='completed') AND (type='s' OR type='pa')";
$sql1_query = mysqli_query($conn, $sql1);
while($sql1_result = mysqli_fetch_array($sql1_query)){
$sql1_value = $sql1_result['SUM(amount)'];
}
echo "<tr><td>".$bank_name."</td>";
if ($sql_value > $sql1_value){
echo "<td align='right'>AED " . number_format(($sql_value - $sql1_value),2) . "</td><td>&nbsp</td>";
}
elseif ($sql1_value > $sql_value) {
echo "<td>&nbsp</td><td align='right'>AED " . number_format(($sql1_value - $sql_value),2) . "</td>";
}
else {
echo "<td>&nbsp</td><td>&nbsp</td>";
}
}
echo "</tr></table>";
}
?>
Try the below query
SELECT SUM(amount) FROM ht_account WHERE mode='$bank_name' AND status='completed' AND type IN('sale','purchase','reciept','payment')
A quick way to do it would be.
$sql3="select column1,column2 from yourtable where ..condition";
$sumofcolumn1;
$sumofcolumn2;
while($sql3_result = mysqli_fetch_array($sql3))
{
$sumofcolumn2+=$sql3_result['column2'];
$sumofcolumn1+=$sql3_result['column1'];
}
echo $sumofcolumn1.' '.$sumofcolumn2

Why Isn't My Data Being Shown?

I have the following tables in my database:
Minutes: minute_id, subject, next_subject, approval, meeting_id
Agendas: agenda_id, subject, duration, approval, reason, meeting_id
I am using the following PHP code:
<?php
$result = mysql_query("SELECT * FROM Agendas INNER JOIN Minutes ON Minutes.meeting_id = Agendas.meeting_id WHERE Agendas.Approval = 'disapproved'")
or die(mysql_error()); ;
if (mysql_num_rows($result) == 0) {
echo 'You Have No New Messages';
} else {
while($info = mysql_fetch_array($result))
{
echo "<tr>";
echo "<td><br/>" .'Title: '. $info['title']." </td>";
echo "<td><br/>" .'Approved?: '. $info['approval']. "</td>";
echo "<td><br/>" .'Reason: '. $info['reason']."</td>";
echo "<hr>";
}
}
echo "</tr>";
echo "</table>";
?>
I am not getting the desired data to be shown as I am only been presented with the message 'You Have No New Messages' when in the agendas table, there is a row which has a field disapproved!
Any ideas?
You are doing an INNER JOIN... make sure there is also an associated row in the minutes table, or else there will be no data to return, even if there is an entry in Agendas.

PHP: table structure

I'm developing a website that has some audio courses, each course can have multiple lessons. I want to display each course in its own table with its different lessons.
This is my SQL statement:
Table: courses
id, title
Table: lessons
id, cid (course id), title, date, file
$sql = "SELECT lessons.*, courses.title AS course FROM lessons INNER JOIN courses ON courses.id = lessons.cid GROUP BY lessons.id ORDER BY lessons.id" ;
Can someone help me with the PHP code?
This is the I code I have written:
mysql_select_db($database_config, $config);
mysql_query("set names utf8");
$sql = "SELECT lessons.*, courses.title AS course FROM lessons INNER JOIN courses ON courses.id = lessons.cid GROUP BY lessons.id ORDER BY lessons.id" ;
$result = mysql_query($sql) or die(mysql_error());
while ($row = mysql_fetch_assoc($result)) {
echo "<p><span class='heading1'>" . $row['course'] . "</span> </p> ";
echo "<p class='datum'>Posted onder <a href='*'>*</a>, latest update on " . strftime("%A %d %B %Y %H:%M", strtotime($row['date']));
}
echo "</p>";
echo "<class id='text'>";
echo "<p>...</p>";
echo "<table border: none cellpadding='1' cellspacing='1'>";
echo "<tr>";
echo "<th>Nr.</th>";
echo "<th width='450'>Lesso</th>";
echo "<th>Date</th>";
echo "<th>Download</th>";
echo "</tr>";
echo "<tr>";
echo "<td>" . $row['nr'] . "</td>";
echo "<td>" . $row['title'] . "</td>";
echo "<td>" . strftime("%d/%m/%Y", strtotime($row['date'])) . "</td>";
echo "<td><a href='audio/" . rawurlencode($row['file']) . "'>MP3</a></td>";
echo "</tr>";
echo "</table>";
echo "<br>";
}
?>
One thing that comes to mind is you're starting with lessons and pulling the course details over with it. That means you're going to have a new row per lesson with a joined course. You may want to sort by course (so they're grouped) then (in PHP) keep a tally of "current course". When the course changes, switch to new heading paragraph, table, etc.
Pseudo code:
$currentCourse = null; // intitialize the course
$query = your select sorted by course;
while ($row in $query)
{
if ($currentCourse != $row['course'])
{
if (!is_null($currentCourse))
{
// there was a course before it, close the current one
}
// begin setting up heading1, table beginning, etc.
$currentCourse = $row['course']; // set this as the active course
}
// dump the current row as a table entry
}
// close the table (same code as in the second if statement)
You close the while loop on line 8 of your code block. Remove that '}' on line 8.
Also the HTML element doesn't exists!
I think I know what's your problem. You need a while loop that loops al the "courses" and in that loop you execute a second query where you select the lessons where the course_id is equal to the current course id you're looping. A little dummy code for you.
<?php
while($row = mysql_fetch_assoc(mysql_query("SELECT * FROM courses"))) {
//display the course
while($row2 = mysql_fetch_assoc(mysql_query("SELECT * FROM lessons WHERE course_id=" . $row['id']))) {
//display the lessons of that course
}
}
?>

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