If you remember me from asking the 20+ questions yesterday, I'm still awake and still at it. I'd like to inform anyone who cares I've made GREAT progress.
What I'm trying to figure out now is how to create a minimum about of rows for a table to have. The reason being is if the Table on my page doesn't have exactly 12 rows, it looks bad. The problem is there won't always be 12 rows worth of data in the SQL Database, so I need to find a way to make it so if there's not 12 results it fills in the table with a character of choice, probably "--"
Also, I'm trying to figure out how to create pages for the table. I haven't done any research on that one yet and it's not what this questions about, but if you know how and want to drop it here, that'd be cool.
There are a few different ways you could go about this, but the basic idea is to know how many rows you printed, and if it's less than 12, print empty rows until you have the 12 you need. Here's one example:
Assuming you have your query results in an array called $data:
<table>
<?php
foreach ($data as $row) {
echo "<tr><td>{$row['col1']}</td><td>{$row['col2']}</td><td>{$row['col3']}</td></tr>";
}
if (count($data) < 12) {
for ($i=0; $i < 12-count($data); $i++) {
echo "<tr><td colspan='3'>EMPTY ROW</td></tr>";
}
}
?>
</table>
You can try using
table-layout: fixed;
Property in table style.
instead of the normal while($stmt->fetch()) use a for loop that iterates 12 times.
something like:
$dofetch = true;
for ($i = 0;$i<12;$i++) {
?><tr><?php
if ($dofetch && $stmt->fetch()) {
echo $stuff;
} else {
$dofetch = false;
echo '--';
}
?></tr><?php
}
Related
http://projects.ourplanet.tk/junetxtdb/
http://code.google.com/p/junetxtdb/ in cms (LekkiCMS)
Now my question is how change this code :
$query = $db->select('wizyty');
foreach($query as $record) {
$idz = $record['pro'];
$query2 = $db->select('wizyty_zabiegi',array('id'=>$idz));
foreach($query2 as $record2) {
$record2['name'];
}
}
Every table has lots of values
table wizyty has organized this way
ID"PID"pro"date"time"value1"value2
1"1"2"2020-12-30"12:00"1"2
2"1"1"2020-05-30"12:00"1"2
and table wizyty_zabiegi this way
ID"name"TIMES"HOW
1"Masaż stóp"25"100
2"Masaż nóg"25"100
i use even for (valuepro = valueid)
but this show only good in first result
third, five , six etc result dont show correctly
thank you ;)
i know in mysql i have join but in this project i dont have it ;(
i wrote this question and i found solution hahah
$is= $record['zabieg'] -1;
$query2 = $db->select('wizyty_zabiegi');
$result .= $query2[$is]['nazwa'];
thanks for everything even for reading this messages
i m dealing with 2 tables.I just want to know whether there is something code that helps me fetching rows for multiple times without writing same query for that many times:
Example:
while($row1=mysqli_fetch_array($result1)) {
while($row2=mysqli_fetch_array($result2)){
//checking for some condition
}
}
In above code unlike array we cant reset a variable outside the inner loop as follows
while($row1=mysqli_fetch_array($result1)) {
$number=0;//so that v can start from first row
while($row2=mysqli_fetch_array($result2)){
//checking for some condition
}
}
I m totally aware that rows and array are different,So i m asking if there is FOR loop we can use on rows?? like:
while($row1=mysqli_fetch_array($result1)) {
for(...){
//so dat it will xecute no.of whileloops*no.of for loops.
}
}
if not clear ask for more.
Your suggestions are much obliged.
Edit:
table: Year
1999
2000
2002
2004
2000
$result=mysqli_query($con,"select distinct Year from table_name");
dataset=mysqli_fetch_array($result)..
If I got it right, you want to match all the results of the first query against all the results of the second query.
In that case, you should first gather all the results of both queries in two PHP arrays (of arrays) and then work with these variables, like so:
$list1=array();
while ($row=mysqli_fetch_array($result1)) $list1[] = $row;
$list2=array();
while ($row=mysqli_fetch_array($result2)) $list2[] = $row;
foreach ($list1 as $row1)
foreach ($list2 as $row2)
{
match_against ($row1, $row2);
}
Note that it looks very much like an SQL JOIN done in PHP.
Why not, as long as the number of results stay within reasonable bounds.
But if it's not the case (i.e. $list1 or $list2 could contain hundreds of elements), be aware that your code will very likely be a lot less efficient than what a DB engine can do.
That's why you might want to consider replacing this code with an SQL query.
Try this (if i understood ):
while( list($row1,$row2) = array(mysqli_fetch_array($result1),mysqli_fetch_array($result2)) ){
// check condition
}
$dataSet1 = mysqli_fetch_all($result1);
$dataSet2 = mysqli_fetch_all($result2);
foreach($dataSet1 AS $row1){
foreach($dataSet2 AS $row2){
}
}
Something like this might work?
I have this. I'm trying to capture the SQL table header name from PHP. This works fine for me.
However I'm struggling to tune this to echo the whole list of table header names except one or two which I dont need to print.
Suppose the names of column number 10 and 15 do not need to be printed how do I tweak my attempt?
Here goes the the code thus far.
// DB1 Connection
$sql = "SELECT * FROM sal_vol;";
$result = mysqli_query($db1,$sql);
$i = 0;
while($i<mysqli_num_fields($result))
{
$meta=mysqli_fetch_field($result);
echo $i.".".$meta->name."<br />";
$i++;
}
while($i<mysqli_num_fields($result))
{
if ($i == 10 || $i == 15) continue;
$meta=mysqli_fetch_field($result);
echo $i.".".$meta->name."<br />";
$i++;
}
I have a follow-up to a previous thread/question that I hope can be solved by relatively small updates to this existing code. In the other thread/question, I pretty much solved a need for a nested unordered list. I needed the nested unordered list to be broken up into columns based on the number of topics.
For example, if a database query resulted in 6 topics and a user specified 2 columns for the layout, each column would have 3 topics (and the related news items below it).
For example, if a database query resulted in 24 topics and a user specified 4 columns for the layout, each column would have 6 topics (and the related news items below it).
The previous question is called PHP - Simple Nested Unordered List (UL) Array.
The provided solution works pretty well, but it doesn't always divide
correctly. For example, when $columns = 4, it only divides the
columns into 3 groups. The code is below.
Another issue that I'd like to solve was brought to my attention by
the gentleman who answered the question. Rather than putting
everything into memory, and then iterating a second time to print it
out, I would like to run two queries: one to find the number of
unique TopicNames and one to find the number of total items in the
list.
One last thing I'd like to solve is to have a duplicate set of
code with an update that breaks the nested unordered list into columns
based on the number of news items (rather than categories). So, this
would probably involve just swapping a few variables for this second
set of code.
So, I was hoping to solve three issues:
1.) Fix the division problem when relying on the number of categories (unordered list broken up into columns based on number of topics)
2.) Reshape the PHP code to run two queries: one to find the number of unique TopicNames and one to find the number of total items in the list
3.) Create a duplicate set of PHP code that works to rely on the number of news items rather than the categories (unordered list broken up into columns based on number of news items)
Could anyone provide an update or point me in the right direction? Much appreciated!
$columns = // user specified;
$result = mysql_query("SELECT * FROM News");
$num_articles = 0;
// $dataset will contain array( 'Topic1' => array('News 1', 'News2'), ... )
$dataset = array();
while($row = mysql_fetch_array($result)) {
if (!$row['TopicID']) {
$row['TopicName'] = 'Sort Me';
}
$dataset[$row['TopicName']][] = $row['NewsID'];
$num_articles++;
}
$num_topics = count($dataset);
// naive topics to column allocation
$topics_per_column = ceil($num_topics / $columns);
$i = 0; // keeps track of number of topics printed
$c = 1; // keeps track of columns printed
foreach($dataset as $topic => $items){
if($i % $topics_per_columnn == 0){
if($i > 0){
echo '</ul></div>';
}
echo '<div class="Columns' . $columns . 'Group' . $c . '"><ul>';
$c++;
}
echo '<li>' . $topic . '</li>';
// this lists the articles under this topic
echo '<ul>';
foreach($items as $article){
echo '<li>' . $article . '</li>';
}
echo '</ul>';
$i++;
}
if($i > 0){
// saw at least one topic, need to close the list.
echo '</ul></div>';
}
UPDATE 12/19/2011: Separating Data Handling from Output Logic (for the "The X topics per column variant"):
Hi Hakre: I've sketched out the structure of my output, but am struggling with weaving the two new functions with the old data handling. Should the code below work?
/* Data Handling */
$columns = // user specified;
$result = mysql_query("SELECT * FROM News LEFT JOIN Topics on Topics.TopicID = New.FK_TopicID WHERE News.FK_UserID = $_SESSION[user_id] ORDER BY TopicSort, TopicName ASC, TopicSort, NewsTitle");
$num_articles = 0;
// $dataset will contain array( 'Topic1' => array('News 1', 'News2'), ... )
$dataset = array();
while($row = mysql_fetch_array($result)) {
if (!$row['TopicID']) {
$row['TopicName'] = 'Sort Me';
}
$dataset[$row['TopicName']][] = $row['NewsID'];
$num_articles++;
}
/* Output Logic */
function render_list($title, array $entries)
{
echo '<ul><li>', $title, '<ul>';
foreach($entries as $entry)
{
echo '<li>', $entry['NewsID'], '</li>';
}
echo '</ul></li></ul>;
}
function render_column(array $topics)
{
echo '<div class="column">';
foreach($topics as $topic)
{
render_list($topic['title'], $topic['entries']);
}
echo '</div>';
}
You have not shown in your both questions what the database table is, so I can not specifically answer it, but will outline my suggestion.
You can make use of aggregation functions in mysql to obtain your news entries ordered and grouped by topics incl. their count. You can do two queries to obtain counts first, that depends a bit how you'd like to deal with your data.
In any case, using the mysql_... functions, all data you selected from the database will be in memory (even twice due to internals). So having another array as in your previous question should not hurt much thanks to copy on write optimization in PHP. Only a small overhead effectively.
Next to that before you take care of the actual output, you should get your data in order so that you don't need to mix data handling and output logic. Mixing does make things more complicated hence harder to solve. For example if you put your output into simple functions, this gets more easy:
function render_list($title, array $entries)
{
echo '<ul><li>', $title, '<ul>';
foreach($entries as $entry)
{
echo '<li>', $entry['NewsID'], '</li>';
}
echo '</ul></li></ul>;
}
function render_column(array $topics)
{
echo '<div class="column">';
foreach($topics as $topic)
{
render_list($topic['title'], $topic['entries']);
}
echo '</div>';
}
This already solves your output problem, so we don't need to care about it any longer. We just need to care about what to feed into these functions as parameters.
The X topics per column variant:
With this variant the data should be an array with one topic per value, like you did with the previous question. I would say it's already solved. Don't know which concrete problem you have with the number of columns, the calculation looks good, so I skip that until you provide concrete information about it. "Does not work" does not qualify.
The X news items per column variant:
This is more interesting. An easy move here is to continue the previous topic with the next column by adding the topic title again. Something like:
Topic A Topic A Topic B
- A-1 - A-5 - B-4
- A-2 Topic B - B-5
- A-3 - B-1 - B-6
- A-4 - B-2
- B-3
To achieve this you need to process your data a bit differently, namely by item (news) count.
Let's say you managed to retrieve the data grouped (and therefore sorted) from your database:
SELECT TopicName, NewsID FROM news GROUP BY 1;
You can then just iterate over all returned rows and create your columns, finally output them (already solved):
$itemsPerColumn = 4;
// get columns
$topics = array();
$items = 0;
$lastTopic = NULL;
foreach ($rows as $row)
{
if ($lastTopic != $row['TopicName'])
{
$topic = array('title' => $row['TopicName']);
$topics[] = &$topic;
}
$topic['entries'][] = $row;
$items++;
if ($items === $itemsPerColumn)
{
$columns[] = $topics;
$topics = array();
$lastTopic = NULL;
}
}
// output
foreach($columns as $column)
{
render_column($column);
}
So this is actually comparable to the previous answer, but this time you don't need to re-arrange the array to obtain the news ordered by their topic because the database query does this already (you could do that for the previous answer as well).
Then again it's the same: Iteration over the returned result-set and bringing the data into a structure that you can output. Input, Processing, Output. It's always the same.
Hope this is helpful.
Basically I have articles in my database and I want to alter the way the first record displays. I want the lastest (Posted) article to be the focus and the older article just to list, (see F1.com). I need to know how to get the first of my values in the array and get it to display differently but I am not sure how to do this, I can do it so all rows display the same just not how to alter the first row. I also need to know how to tell the rest of the rows to display the same afterwards im guessing you use an if statement there and before that some kind of count for the rows.
Current code:
$result = mysql_query("SELECT * FROM dbArticle WHERE userID='".$_SESSION["**"]."' ORDER BY timestamp DESC");
while($row = mysql_fetch_array($result))
{
echo "<h2 class=\"heading1\">". $row['title'] ."</h2>";
echo "By: ".$row['username']." Type: ".$row['type']." Posted: ".$row['timestamp']."
$body = $row['body'];
echo "<br/><p>";
echo substr("$body",0,260);
echo "...<span class=\"tool\"><a class=\"blue\" href=\"index.php?pageContent=readArticle&id=".$row['id']."\">Read More</a></span></p><hr/>";
}
mysql_close($con);
Ok I have taken Luke Dennis's code and tried to test it, but I am getting this error: Warning: Invalid argument supplied for foreach() this is the line of the foreach statment. Something that has just come to mind is that I will only want 5 or so of the older articles to display. This is what I have thats creating the error:
<? $con = mysql_connect("localhost","****","***");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("******", $con);
$result = mysql_query("SELECT * FROM dbArticle ORDER BY timestamp DESC");
$first = true;
foreach($result as $row){
if($first)
{
echo"".$row['title']."";
echo"this is the headline";
$first = false;
}
else
{
echo"".$row['title']."";
}
}
?>
Do I need to add mysql_fetch_array somewhere to set the array up?
I would just iterate through the results and apply a css class to the first entry:
$first = true;
while ($row = mysql_fetch_assoc($result)) {
$cssClass = '';
if ($first) {
$cssClass = 'highlight';
}
echo '<p class="' . $cssClass . '">' . $row['text'] . '</p>';
$first = false;
}
It's a bit crude, but I often hard-code a variable to designate the first run through a loop. So something like:
$first = true;
foreach($list_of_items as $item)
{
if($first)
{
// Do some stuff
$first = false;
}
else
{
// Do some other stuff
}
}
A simple if statement when looping through your results will usually do the trick. You can use a boolean to indicate if you've output the first row of results or now. If you haven't then give it a particular style and then set the boolean to true. Then all subsequent rows get a different style.
All of the above are correct. Luke Dennis' post is of course fleshed-out a bit more.
As Brian Fisher said, add some CSS styling to the first link when you encounter it per Luke's post.
I took a look at the article list on the F1 website. Pretty well constructed site - "One would expect that." :-)
Anyway, the article listings are contained within a two row table (summary="Latest Headlines") in descending order (newest first).
Just place a class in the second column (<td class="first-news-article">). Then add the class name and appropriate styling values in the css file - probably your' modules.css. There's already quite a few class values associated with articles in that file, so you may be able to just use an existing value.
That should be about it - other than actually doing it!
By the way, judging by the quality of the underlying html, I'm assuming there's already an "article list emitter." Just find that emitter and place the appropriate conditional to test for the first record.
Darrell
I just noted your code addition. I assume that you were showing the F1 site as an example. Anyway, I think you're on your way.
I presume you have some code that loops through your resultset and prints them into the page? Could you paste this code in, and that might give us a starting point to help you.
I don't know PHP, so I'll pseudocode it in Perl. I wouldn't do it like this:
my $row_num = 0;
for my $row ($query->next) {
$row_num++;
if( $row_num == 1 ) {
...format the first row...
}
else {
...format everything else...
}
}
The if statement inside the loop unnecessarily clutters the loop logic. It's not a performance issue, it's a code readability and maintainability issue. That sort of thing just BEGS for a bug. Take advantage of the fact that it's the first thing in the array. It's two different things, do them in two different pieces of code.
my $first = $query->next;
...format $first...
for my $row ($query->next) {
...format the row...
}
Of course, you must make the first row stand out by using tags.
I'd use array_shift():
$result = mysql_fetch_assoc($resultFromSql); // <- edit
$first = array_shift($result);
echo '<h1>'.$first['title'].'</h1>';
foreach ($result as $row) {
echo '<h2>'.$row['title'].'</h2>';
}
The best way to do this is to put a fetch statement prior to the while loop.
Putting a test inside the while loop that is only true for one iteration can be a waste of time for a result of millions of rows.