how to display data in two column with php with header - php

Question

I have database
---------------------------------------------
no | name | code | grade
---------------------------------------------
1 | john | A1 | C
2 | john | A2 | D
3 | john | A3 | B
4 | tom | A1 | A
5 | john | A4 | A
6 | alice | A1 | C
7 | alice | A2 | D
8 | john | A5 | D
9 | john | A6 | C
---------------------------------------------
when I want show data with name john, I want result with 2 column:
---------------------------------------------------------------
no | name | code | grade | no | name | code | grade |
---------------------------------------------------------------
1 | john | A1 | C | 5 | john | A5 | D |
2 | john | A2 | D | 6 | john | A6 | C |
3 | john | A3 | B | | | | |
4 | john | A4 | A | | | | |
---------------------------------------------------------------
this my code that I already try
$result = mysql_query("select * from grade ");
echo "<table border='1'><tr>";
echo "<td>no</td>";
echo "<td>name</td>";
echo "<td>code</td>";
echo "<td>grade</td></tr><tr>";
$no = 1;
$count = 1;
while ($row = mysql_fetch_array($result, MYSQL_ASSOC))
{
extract($row);
echo "<td>$no</td>";
echo "<td>$row[name]</td>";
echo "<td>$row[code]</td>";
echo "<td>$row[grade]</td>";
if ($count++ % 2 == 0)
{
echo "</tr><tr>";
$no++;
}
}
echo "</tr></table>";
But the result not what I want, this is the result when I run my code
no | name | code | grade | | | | |
---------------------------------------------------------------
1 | john | A1 | C | 1 | john | A4 | A |
2 | john | A2 | D | 2 | john | A5 | D |
3 | john | A3 | B | 3 | john | A6 | C |
---------------------------------------------------------------
Can somebody help me...thank you

Answer 1

This is representation problem, so it can be solved it two ways.
1. You can make this columns using modern HTML:
<section style="-webkit-column-count:2; -webkit-column-gap:15;">
<div class='columns'>
<table>
<tr>
<th>no</th>
<th>name</th>
<th>code</th>
<th>grade</th>
</tr>
<?php
$result = mysql_query("select * from grade ");
$no = 1;
while ($row = mysql_fetch_array($result, MYSQL_ASSOC)) {
echo '<tr>';
echo "<td>{$row['no']}</td>";
echo "<td>{$row['name']}</td>";
echo "<td>{$row['code']}</td>";
echo "<td>{$row['grade']}</td>";
echo '</tr>';
$no++;
}
?>
</table>
</div>
</section>
2. If you want to stick to plain tables, you have to do some calculations:
First, you need to know full amount of grades you gonna show. You can get it with SQL query(more efficient way), I'll do it by preloading all data to array. HTML footer and header are omitted for brevity.
<?php
$data = array();
$result = mysql_query('SELECT * FROM grade;');
while ($row = mysql_fetch_array($result, MYSQL_ASSOC)) {
$data[] = $row;
}
$rows = (int) ceil(count($data)/2);
for ($i=0; $i < $rows; $i++) {
$no = $i + 1;
echo '<tr>';
echo "<td>{$no}</td>";
echo "<td>{$data[$i]['name']}</td>";
echo "<td>{$data[$i]['code']}</td>";
echo "<td>{$data[$i]['grade']}</td>";
if (array_key_exists($i + $rows, $data)) {
$no = $i + $rows + 1;
echo "<td>{$no}</td>";
echo "<td>{$data[$i + $rows]['name']}</td>";
echo "<td>{$data[$i + $rows]['code']}</td>";
echo "<td>{$data[$i + $rows]['grade']}</td>";
} else {
echo "<td> </td>";
echo "<td> </td>";
echo "<td> </td>";
echo "<td> </td>";
}
echo "</tr>\n";
}

Answer 2

I have not tested this nor checked for errors, but I think it is on the lines of what you are trying to accomplish.
$result = mysql_query("select * from grade ");
$orig_count = mysql_num_rows($result);
if ( $orig_count % 2 != 0 )
$count = $orig_count + 1;
$cols = $count / 2;
//draw header
echo "<table border='1'><tr>";
echo "<td>no</td>";
echo "<td>name</td>";
echo "<td>code</td>";
echo "<td>grade</td></tr><tr>"
for ( $i = 0; $i < $cols; i++ )
{
if ( $orig_count == 0 )
break; //zero results
//first column
echo "<td>$i</td>";
echo "<td>".mysql_result( $result, $i, "name" )."</td>";
echo "<td>".mysql_result( $result, $i, "code" )."</td>";
echo "<td>".mysql_result( $result, $i, "grade" )."</td>";
//second column
if ( $i > $orig_count )
{
echo "<td> </td>";
echo "<td> </td>";
echo "<td> </td>";
echo "<td> </td>";
}
else
{
echo "<td>".$i+($count/2)."</td>";
echo "<td>".mysql_result( $result, $i+($count/2), "name" )."</td>";
echo "<td>".mysql_result( $result, $i+($count/2), "code" )."</td>";
echo "<td>".mysql_result( $result, $i+($count/2), "grade" )."</td>";
}
}
//finish off
echo "</tr></table>";