[RESOLVED] Checkboxes inside table using an array

zooropa

Can anyone help me with this problem.

What i'd like to do is create a 5x5 table and inside each cell there will be a checkbox.

Column 1 will contain checkboxes with names 01, 02, 03, 04, 05
Column 2 will contain checkboxes with names 06, 07, 08, 09, 10 and so on

I'd like to achieve this using multidimensional arrays - i've put the beginnings of my code below but am unsure as to how to proceed. Thanks.

<html>

<?php

for ($k=1; $k<=25; $k++) {
for ($i=1; $i<=5; $i++) {
for ($j=1; $j<=5; $j++) {

$a[$i][$j] = $k;

}
}
}

</table>

</body>

<body>

</body>
</html>

Krik

First to loop through an array you always start at 0. So if you want the first 5 items in an array then it is 0 through 4.

Next that code will create a multidimensional array, but the values will all be 25. This because each time through the first "for" loop it runs the second "for" loop 5 times and it run the third "for" loop 5 time setting all the array values to the current value of he first "for" loop. And each consecutive pass through the first "for" loop overrides what the preceding loops set the array values as.

Here is the solution to the problems above as well as your answer.

<?php
$a = array();
$k = 1;
for ($i=0; $i<=4; $i++) {
	$a[$i] = array();
	for ($j=0; $j<=4; $j++) {
		$a[$i][$j] = $k++;
	}
}
?>
<table border="1">
<?php
foreach($a as $key => $val) {
?>
	<tr>
<?php
	foreach($val as $k => $v) {
?>
		<td><?php echo $v; ?></td>
<?php
	}
?>
	</tr>
<?php
}
?>
</table>

zooropa

Hi Krik,
Thanks for your reply - it's almost perfect - what i need is for numbers below 10 to be in the format 01, 02,... instead of 1,2,... and also for the numbers to populate the table by column rather than by row. So the first column would contain 01, 02, 03, 04, 05 instead of 1, 6, 11, 16, 21. Any ideas? I've tried but it's all gone horribly wrong!

Thank goodness people like you are on this board - i think a monkey would have written Romeo and Juliet through sheer chance sooner than i would have written this code correctly : )

Krik

what i need is for numbers below 10 to be in the format 01, 02,... instead of 1,2

<td><?php echo sprintf('%02s', $v); ?></td>

So the first column would contain 01, 02, 03, 04, 05 instead of 1, 6, 11, 16, 21. Any ideas?

The question then is are you familiar with tableless design. You can place each set of five numbers in a div and then float left each div.

<?php
$a = array();
$k = 1;
for ($i=0; $i<=4; $i++) {
    $a[$i] = array();
    for ($j=0; $j<=4; $j++) {
        $a[$i][$j] = $k++;
    }
}
?>
<div style="clear: both; width: 200px;">
<?php
foreach($a as $key => $val) {
?>
    <div style="float: left; width: 20%;">
<?php
    foreach($val as $k => $v) {
?>
        <div><?php echo sprintf('%02s', $v); ?></div>
<?php
    }
?>
    </div>
<?php
}
?>
</div>

Or if you are really, really set on using tables, set each <tr> and <td> to "display: block;" and then "float: left;" the <tr>'s. Of course that seems a bit strange but it would work.

zooropa

Thanks so much Krik, I knew just about enough about CSS to understand your tableless question. So I stripped out all my table tags and tried your code. It worked beautifully and I was able to adapt it to create a 5 x 5 array of checkboxes and not a table in sight : ) Very Happy, Thanks