I have a webpage where it shows the lists of Projects and the monitoring of its progress/finances for every quarter. As shown below:
As you can see, my table is comprises of Project Name and a lists of sub-title's underneath it. And a series of columns per each quarter. Thru PHP I was able to populate the list of sub-titles under the Project Name, which also being fetched from the server side. Here's the code:
$sql = mysqli_query($con," My SELECT Statement ");
$i=0;
while($row = mysqli_fetch_assoc($sql)){
$ptitle = $row['Title'];
$iname = $row['Item'];
if($i%1)
{
?>
<?php } else { ?>
<tr>
<?php } ?>
<td width="25%"><?php echo $ptitle; ?></td>
<td></td>
</tr>
<tr>
<td><?php echo "<ul style='list-style-type: none;'><li>".nl2br($iname)."</li></ul>"; ?></td>
<td contenteditable="true" name="v1"></td>
Note: ptitle = ProjectName and iname = Semi-title underneath the Project's name.
Now, as you can see, the Project Name column literally "conquer" a single row on the left. Yet, the rows under the column of each quarter, should have its own separately, and must be parallel to the every sub-title underneath the Project Name. (Please refer to the image above for this) the only problem am encountering is... how can I make an editable row from inside a row, without affecting mysqli result? coz basically my table right now is kinda look like this:
Anyone who's more experience on this? I need your help.
PS: ...and oh! You might be wondering why do I include JSON in the title? It is because, I originally use JSON for editing those table rows before I even use mysqli_fetch_array. But when I include the results of the array inside the <table> tag, everything's changed and JSON is no longer working. So as of now, I am force to do it manually, meaning typing each <td contenteditable=true> in all of those rows. Yet, its not the desired output since I need another row within an existing row. Ideas? Anyone?
Figure Two:
Figure Three:
Count the number of lines in $iname, and then use a loop to create that many rows of contenteditable cells. You can also use this in the rowspan attribute of the <td> containing the title and subtitles.
$rows = substr_count($iname, "\n") + 1;
for ($i = 0; $i < $rows; $i++) {
echo "<tr>";
if ($i == 0) { ?>
<td rowspan='<?php echo $rows;?>' width='25%'><?php echo $ptitle . "<br>" . nl2br($iname);?></td>
<?php }
?>
<td contenteditable="true" name="v1"></td><td contenteditable="true" name="v2"></td>...
</tr>
<?php }
DEMO
I have a mysql database with some data.here i display data on one page Now I want to display this data on next page please give me suggestion how I can do this .........
I need some modifications in this code like
I want to display table this table on next page(book.php page that is populated with the database)......
Second thing that I need to know is it possible to store the value of calendar in session variable (is it ???than how?)
<?php
if(isset($_POST['search'])){
$from = $_POST['from'];
$to = $_POST['to'];
$query = mysql_query("select * from schedule where Destinatio='$from' AND Arriva ='$to'");
$c = mysql_num_rows($query);
if (!$query) {
die('Invalid query: ' . mysql_error());
}
if($c>0)
{
?>
<table>
<tr align="center"><td width="120"><span class="style23">Destination</span> </td>
<td width="57"><span class="style23">Arrival</span></td>
<td width="121"><span class="style23">Departure time</span></td>
<td width="98"><span class="style23">Arrival Time</span></td>
<td width="44"><span class="style23">Fare</span></td>
<td width="85"><span class="style23">Bus_type</span></td>
<td width="84"><span class="style23">Total_Seats</span></td>
<td width="81"><span class="style23">Available</span></td>
<td width="52"> </td>
</tr>
</section>
<?php
while($r1 = mysql_fetch_array($query))
{
$schedule= $r1['id'];
$Destinatio = $r1['Destinatio'];
$Arriva= $r1['Arriva'];
$Departure_time = $r1['Departure_time'];
$Arrival_time = $r1['Arrival_time'];
$Fare = $r1['Fare'];
$Bus_type = $r1['Bus_type'];
$Total_Seats = $r1['Total_Seats'];
$bust = $schedule.'schedule';
$query1 = mysql_query("SELECT * from $bust where status='Available'");
echo $query1;
if (!$query1) {
die('Invalid query: ' . mysql_error());
}
$c = mysql_num_rows($query1);
?>
<tr align="center"><td><?php echo $Destinatio;?></td><td><?php echo $Arriva;?></td><td><?php echo $Departure_time;?></td><td><?php echo $Arrival_time;?></td><td><?php echo $Fare;?></td><td nowrap="nowrap"><?php echo $Bus_type;?></td><td><?php echo $c;?></td><td>Book
</td>
</tr></table>
</form>
There are three main ways to pass variables:
Using a form button using $_POST variables to pass the content
(generally best when you also have user input).
Using an HTML anchor link to pass the variables through $_GET
Using a SESSION variable that can be accessed on all pages on your site.
Using SESSION variables is the more secure way, but it the data isn't secret use the $_GET method.
To store something in a SESSION variable you need to use:
start_session();
$_SESSION['varname'] = value;
on the following page, you can read your SESSION variable just by using it's name. For example:
start_session();
echo $_SESSION['varname'];
What's the best practice to output the each row's real counter from an array ? I have the object array of retrieved users from database that I'am echoing into the <table />
<tbody>
<?php $i = 1;?>
<?php foreach($members as $member):?>
<tr>
<td class="column-counter">
<?php echo $i;?>
</td>
<td class="column-check">
<input type="checkbox" class="checkbox" name="checked[]" value="<?php echo $member->id;?>" <?php if(intval($member->id) === intval($this->session->userdata('login_status')['id'])):?>disabled<?php endif;?>>
</td>
<td class="column-username">
<?php echo $member->username;?>
</td>
<td class="column-email">
<?php echo $member->email;?>
</td>
<td class="column-id">
<?php echo $member->id;?>
</td>
</tr>
<?php $i++;?>
<?php endforeach;?>
</tbody>
What I've done so far is that $i =1 incrementing each time the loop is triggered.
But the problem is that if I go to the second page, it starts from "1" again, instead of let's say 21 (in case it shows 20 rows per page).
How can I make it right so it will continue counting from last row of previous page ?
By the way I'am using a codeigniter if that helps.
==== UPDATE ====
The model models/members_model.php i'am using in controllers/members.php to retrieve the users holds this function mixed with pagination:
public function members($data = array(), $return_count = FALSE){
$this->db
->select('
members.id,
categories.title as role,
members.catid as role_id,
members.firstname,
members.lastname,
members.username,
members.email,
members.status,
members.image
')
->join('categories', 'members.catid = categories.id');
if( empty($data) ){
// If nothing provided, return everything
$this->get_members();
}else{
// Grab the offset
if( !empty($data['page']) ){
$this->db->offset($data['page']);
}
// Grab the limit
if( !empty($data['items']) ){
$this->db->limit($data['items']);
}
if( $return_count ){
return $this->db->count_all_results($this->_table_name);
}else{
return $this->db->get($this->_table_name)->result();
}
}
}
It sounds like $data['page'] holds the information you need since this is related to the specified offset. You didn't reference the name of this array in your global scope, so I will just call this $data_array in my answer.
You can determine the starting value for $i as follows
$i = $data_array['page'] + 1;
I have the following two table structures in MySQL, which record details of a conference call and those participants that joined it:
Table: conference:
conference_sid, date_created, date_completed, RecordURL, PIN
*date_created and *date_completed are timestamps
Table: participants:
conference_sid, call_sid, call_from, name_recording
I want to output a simple table, that displays the following results for each conference_sid as a separate row:
<table>
<thead>
<th>Date</th>
<th>Duration</th>
<th>Participants</th>
<th>Recording</th>
</thead>
<tbody>
<tr id="conference_sid">
<td>date_created</td>
<td>duration: [date_completed - date_created in h/mm/ss]</td>
<td>
<li>call_from [for all participants in that conference_sid]
<li>call_from...
</td>
<td>
Call recording
</td>
</tr>
<tr id="conference_sid">
...
</tr>
</tbody>
</table>
I only want this table to show relevant results for conferences that have the same PIN as the user's Session::get('PIN')
You can combine the participants using GROUP_CONCAT
SELECT
conf.conference_sid,
date_created,
TIMEDIFF(date_completed, date_created) AS duration,
conf.RecordURL,
conf.PIN,
GROUP_CONCAT(pid SEPARATOR ",") AS pid,
GROUP_CONCAT(call_sid SEPARATOR ",") AS call_sid,
GROUP_CONCAT(call_from SEPARATOR ",") AS call_from,
GROUP_CONCAT(name_recording SEPARATOR ",") AS name_recording
FROM
conference conf
LEFT OUTER JOIN
participants p ON p.conference_sid = conf.conference_sid
WHERE
conf.PIN = 123
GROUP BY conf.conference_sid
Refer SQLFIDDLE and MySQL documentation about TIMEDIFF.
Now the application logic will be
<?php
$pin = 123;
$db = new PDO('mysql:host=localhost;dbname=test', 'username', 'password');
$stmt = $db->prepare(
'SELECT
conf.conference_sid,
date_created,
timediff(date_completed, date_created) AS duration,
conf.RecordURL,
conf.PIN,
GROUP_CONCAT(pid SEPARATOR ",") AS pid,
GROUP_CONCAT(call_sid SEPARATOR ",") AS call_sid,
GROUP_CONCAT(call_from SEPARATOR ",") AS call_from,
GROUP_CONCAT(name_recording SEPARATOR ",") AS name_recording
FROM
conference conf
LEFT OUTER JOIN
participants p ON p.conference_sid = conf.conference_sid
WHERE
conf.PIN = :pin
GROUP BY conf.conference_sid');
$stmt->bindParam(':pin', $pin);
?>
<table border="1">
<thead>
<th>Date</th>
<th>Duration</th>
<th>Participants</th>
<th>Recording</th>
</thead>
<tbody>
<?php
$stmt->execute();
while ($row = $stmt->fetch()) {
?>
<tr>
<td><?php echo $row['date_created']; ?></td>
<td><?php echo $row['duration']; ?></td>
<td>
<table border="1">
<thead>
<th>call_sid</th>
<th>call_from</th>
<th>name_recording</th>
</thead>
<tbody>
<?php
$length = count(explode(',', $row['pid']));
$call_sid = explode(',', $row['call_sid']);
$call_from = explode(',', $row['call_from']);
$name_recording = explode(',', $row['name_recording']);
for ($i=0; $i < $length; $i++) {
?>
<tr>
<td> <?php echo $call_sid[$i]; ?> </td>
<td> <?php echo $call_from[$i]; ?></td>
<td> <?php echo $name_recording[$i]; ?> </td>
<tr>
<?php
}
?>
</tbody>
</table>
</td>
<td>
<a href="<?php echo $row['RecordURL']; ?>">
Call recording</a>
</td>
</tr>
<?php
}
?>
</tbody>
You will get the result set with comma(,) separated values in pid, call_sid, call_from, and name_recording. You can convert this string to array using explode.
array explode ( string $delimiter , string $string [, int $limit ] )
Returns an array of strings, each of which is a substring of string
formed by splitting it on boundaries formed by the string delimiter.
I won't do the PHP part, as I am not that knowledgeable in PHP, but here is the SQL:
SELECT *
FROM `conference`, `participants`
WHERE `conference`.PIN = $PIN AND
`participants`.conference_sid = `conference`.conference_sid
This will return rows with the information from conference and the participants of those conferences, joined into one row.
The following query will give you the information you need to display:
SELECT c.conference_sid
, c.date_created
, timediff(c.date_completed, c.date_created) AS duration
, p.call_from
, p.name_recording
, c.RecordURL
FROM conference c
JOIN participants p
ON c.conference_sid = p.conference_sid
WHERE c.PIN = :PIN
ORDER BY c.conference_sid
You will need to process the results with a nested loop. The outer loop should advance each time the conference_sid changes. The inner loop will display each element of the participants list for that conference.
This will be my take on it, it uses 2 separate queries to keep the data kinda separated. I use fetchAll() for brevity but this could have performance issues, luckily this can be accomodated. I didn't put any error checking, if you want it or you have questions, please ask
<?php
// assume $db is a PDO connection to the database
/* #var $db PDO */
$q = 'SELECT conference_sid, date_created, date_completed, RecordURL, PIN'
.' FROM conference';
// we need these
$conferences = $db->query($q)->fetchAll(PDO::FETCH_CLASS,'stdClass');
// let's group them as CSV, and concatenate the contents with ":"
$q = 'SELECT conference_sid,GROUP_CONCAT(CONCAT_WS(":",call_from,name_recording)) AS parts '
.' FROM participants GROUP BY conference_sid';
$conf_parts = array();
foreach ($db->query($q)->fetchAll(PDO::FETCH_CLASS,'stdClass') as $parts) {
// save the participants as an array, their data is still joined though
$conf_parts[$parts->conference_sid] = explode(',',$parts->parts);
// their contents will be exploded later
}
?>
<table>
<thead><th>Date</th><th>Duration</th><th>Participants</th><th>Recording</th></thead>
<tbody><?php foreach ($conferences as $conference) {
$csid = $conference->conference_sid;
// http://stackoverflow.com/questions/3108591/calculate-number-of-hours-between-2-dates-in-php
// Create two new DateTime-objects...
$date1 = new DateTime($conference->date_completed);
$date2 = new DateTime($conference->date_created);
// The diff-methods returns a new DateInterval-object...
$diff = $date2->diff($date1);
?><tr id="<?php echo $csid; ?>">
<td><?php echo $conference->date_created; ?></td>
<td><?php echo $diff->format('H/i/s'); ?></td>
<td>
<ul><?php foreach ($conf_parts[$csid] as $participant) {
// we have each participant for this conference call
list ($call_from, $name_recording) = explode($participant,':');
// and now we have the required data from each participant
?><li><?php echo $call_from; ?></li><?php
} ?></ul>
</td>
<td>
Call recording
</td>
</tr><?php
} ?></tbody>
</table>
In this particular contex I prefer to use two separated queries. Here's how I would do it:
<?php
try {
$db = new PDO('mysql:host=localhost;dbname=test', 'username', 'password');
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e) {
echo 'Could not connect to db';
exit;
}
$stmt_conferences = $db->prepare(
'SELECT
date_created,
timediff(date_completed, date_created) AS duration,
RecordURL,
conference_sid
FROM
conference
WHERE
PIN=:pin');
$stmt_conferences->bindParam(':pin', $pin);
$stmt_participants = $db->prepare(
'SELECT
name_recording,
call_from
FROM
participants
WHERE
conference_sid=:confsid');
$stmt_participants->bindParam(':confsid', $confsid);
?>
<table>
<thead>
<th>Date</th>
<th>Duration</th>
<th>Participants</th>
<th>Recording</th>
</thead>
<tbody>
<?php
$pin = 1; /* get your PIN here */
$stmt_conferences->execute();
while ($row = $stmt_conferences->fetch()) {
?>
<tr>
<td><?php echo htmlspecialchars($row['date_created'], ENT_QUOTES); ?></td>
<td><?php echo htmlspecialchars($row['duration'], ENT_QUOTES); ?></td>
<td>
<?php
$confsid = $row['conference_sid'];
$stmt_participants->execute();
while ($participant = $stmt_participants->fetch()) {
?>
<li><a href="<?php echo htmlspecialchars($participant['name_recording'], ENT_QUOTES); ?>">
<?php echo htmlspecialchars($participant['call_from'], ENT_QUOTES); ?>
</a>
<?php
}
?>
</td>
<td>
<a href="<?php echo htmlspecialchars($row['RecordURL'], ENT_QUOTES); ?>">
Call recording</a>
</td>
</tr>
<?php
}
?>
</tbody>
Please notice that you have to add some code to handle errors and to correctly escape all data you echo (can you really trust your database?). Also element IDs should be unique within the entire document, you can have just one id="conference_sid" in your page. Use classes instead.
Edit
If you can really trust your database, then you can just output the contents of a field with code like this:
<?php echo $row['call_from']; ?>
but what happens if RecordURL contains for example the following string?
<script>alert("I am injecting some code....");</script>
It will happen that some unwanted code will be injected in your page, so it is always better yo use a safe function like htmlspecialchars() every time you need to echo some output:
<?php echo htmlspecialchars($row['call_from'], ENT_QUOTES); ?>
this way, any unwanted code won't be harmful.
I also added a basic TRY/CATCH construct to handle errors.
Hope this helps!
First, we need to get our result.
$vPIN = $_SESSION['PIN']; // or however you get your user's pin from session
$vQuery = "SELECT * FROM conference AS a LEFT JOIN participants as B USING (conference_sid) WHERE a.PIN='$vPIN'";
$oResult = $oDB->execute($vQuery);
$aRows = $oResult->fetchAll(PDO::FETCH_ASSOC);
note the prefixes: $v if for a simple variable, $o represents a ressource (which I like to think of as an object), $a represents an array. It's just for my mental sanity.
so now, we have an array, probably very big, containing every single row in the conference table times every corresponding row in the participants. Sweet, now let's build an array with some meaning in it.
foreach($aRows as $aRow) // maybe a bit confusing but the 's' changes everything: all rows vs one row
{if (!isset($aConferences[$aRow['conference_sid']]['infos']))
{$aConferences[$aRow['conference_sid']]['infos']['date_created'] = $aRow['date_created'];
$aConferences[$aRow['conference_sid']]['infos']['date_completed'] = $aRow['date_completed'];
$aConferences[$aRow['conference_sid']]['infos']['record_url'] = $aRow['RecordURL'];
$aConferences[$aRow['conference_sid']]['infos']['pin'] = $aRow['PIN'];}
$aConferences[$aRow['conference_sid']]['participants'][] = $aRow['call_from'];}
so what happens here is that for each row, if the infos for corresponding conference_sid haven't been set, they will be, and then we create a list from 0 to x of each call_from for that conference. print_r of that array with dummy values:
[1627]['infos']['date_created'] = 2013-11-26
['date_completed'] = 2013-11-29
['record_url'] = 'http://whatever.com'
['PIN'] = 139856742
['participants'][0] = Bob
[1] = gertrude
[2] = Foo
[8542]['infos']['date_created'] = 2013-12-01
['date_completed'] = 2013-12-02
['record_url'] = 'http://whateverelse.com'
['PIN'] = 584217
['participants'][0] = Family Guy
[1] = aragorn
[2] = obama
[3] = Loki
so here is a nice array with which we can build a html table! let's do that
$vHTML = '<table>
<thead>
<th>Date</th>
<th>Duration</th>
<th>Participants</th>
<th>Recording</th>
</thead>
<tbody>';
foreach ($aConferences as $conference_sid => $aConference) // notice the s and no s again
{$vHTML.= '<tr id="' . $conference_sid . '">';
$vDateCreated = $aConference['infos']['date_created'];
$vDateCompleted = $aConference['infos']['date_completed'];
$vHTML.= '<td>' . $vDateCreated . '</td>';
$vHTML.= '<td>' . date('Y-m-d',(strtotime($vDateCompleted) - strtotime($vDateCreated))) . '</td>'; // you might have to debug that date diff for yourself.
$vHTML.= '<td><ul>'; // here a foreach for the participants
foreach ($aConference['participants'] as $call_from)
{$vHTML.= '<li>' . $call_from . '</li>';}
$vHTML.= '</ul></td>';
$vHTML.= '<td>' . $aConference['infos']['record_url'] . '</td>';
$vHTML.= '</tr>';}
$vHTML.= '</tbody></table>';
so here: for each conference create a table row with the infos, then for each participant, add a list item within the list. comment if you wish for any precision.
oh, and don't forget to do something with $vHTML. like echo $vHTML :)
I'm trying to achieve a multiple update in one submit. I have a table with a number of rows and want to be able to update one field in each row just by tabbing to the next insert box.
My code is thus:-
//start a table
echo '
';
//start header of table
echo '<tr>
<td width="60" align="center"><strong>Lab Item ID</strong></td>
<td width="60" align="center"><strong>Test Suite Name</strong></td>
<td width="60" align="center"><strong>Test Name</strong></td>
<td width="50" align="center"><strong>Result</strong></td>
</tr>';
//loop through all results
while ($row=mysql_fetch_object($sql)) {
//print out table contents and add id into an array and email into an array
echo '<tr>
<td align="center"><input name="id[]" value='.$row->lab_item_id.' readonly> </td>
<td align="center">'.$row->test_suite_name.'</td>
<td align="center">'.$row->test_name.'</td>
<td><input name="test_result[]" type="text" value="'.$row->test_result.'"></td>
</tr>';
}
//submit the form
echo'<tr>
<td colspan="3" align="center"><input type="submit" name="Submit" value="Submit"></td>
</tr>
</table>
</form>';
//if form has been pressed proccess it
if($_POST["Submit"])
{
//get data from form
//$name = $_POST['name'];
//$_POST['check_number'] and $_POST['check_date'] are parallel arrays
foreach( $_POST['id'] as $id ) {
$tresult = trim($_POST['test_result']);
$query = "UPDATE tbl_lab_item SET test_result='$tresult' WHERE lab_item_id = '$id'";
//execute query
}
print_r($_POST);
var_dump($tresult);
//redirect user
$_SESSION['success'] = 'Updated';
//header("location:index.php");
}
?>
When I print the $_POST arrays, everything is populating fine, however the variable is Null. I know I can't do a foreach on multiple arrays (at least I don't think I can) so is there some other trick I'm missing please? I can't be far away as the $_Post print has the right data in it.
Incidentally, the whole thing is generated by a query, so I never know how many records I'll have to update.
I've been looking at this (and other) forums, but can't seem to get a solution. I thought I understood arrays, but now I'm beginning to wonder!
edit - it's the $tresult variable that isn't working.
Many thanks,
Jason
Edit Thursday 21st Feb (05:41 UK time)
Thanks for your input everybody. I've solved this one now, and your collective advice helped. The code that finally cracked it is:-
//get data from form
$id1 = $_POST['id'];
$test_result1 = $_POST['test_result'];
foreach ($id1 as $key => $value){
$query = "UPDATE tbl_lab_item SET test_result='$test_result1[$key]' WHERE lab_item_id=$value ";
//execute query
Working through which variables etc were populated and what they were populated with was the key. Back to first principles, isn't it?
Cheers all.
J
Actually, you might get it done by doing a simpler (basic) form of for loop:
//get data from form
//$name = $_POST['name'];
//$_POST['check_number'] and $_POST['check_date'] are parallel arrays
$numberOfData = count($_POST['id']);
for($index = 0; $index < $numberOfData; $index++)
{
$id = $_POST['id'][$index];
$tresult = trim($_POST['test_result'][$index]);
$query = "UPDATE tbl_lab_item SET test_result='$tresult' WHERE lab_item_id = '$id'";
//execute query
}
print_r($_POST);
I hope this helps.
Cheers
change the query like this :
$query = "UPDATE tbl_lab_item SET test_result=$tresult WHERE lab_item_id = $id";
By adding single quotes ' ' you tell it to read is as a String and not to take the value of the var.
Edit
Replace your foreach loop with the following and let me know :
$id1 = $_POST['id'];
$test_result1 = $_POST['test_result'];
foreach( $id1 as $key => $value ) {
$query = "UPDATE tbl_lab_item SET test_result='$test_result1[$key]' WHERE lab_item_id = '$key' ";
}
Problem is that you're telling PHP to build your input fields as arrays, but then treat it as a string later:
<td><input name="test_result[]" type="text" value="'.$row->test_result.'"></td>
^^--- array
$tresult = trim($_POST['test_result']);
^^^^^^^^^^^^^^^^^^^^^--- no array key, so you're assigning the entire array
$query = "UPDATE tbl_lab_item SET test_result='$tresult'
^^^^^^^^^^--- array in string context
trim() expects a string, but you pass in an array, so you get back a PHP NULL and a warning. That null then gets stuffed into your SQL statement, and there's your problem.