Member Avatar for LibraryCode

Hi all i generated table,but it looks like the code is a bit messy,long,how can i do the same with the arrays or loops?

<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
        <style>
    table{border-collapse: collapse;}
    tr th, tr td{border: 1px solid black;}
   #resize
   {
       width :100%;
       position: relative;
   }
</style>
    </head>
    <body>

        <?php




       $numbers = mt_rand(1,100); 
       $numbers1 = mt_rand(1,100); 
       $numbers2 = mt_rand(1,100); 
       $numbers3 = mt_rand(1,100); 
       $numbers4 = mt_rand(1,100); 
       $numbers5 = mt_rand(1,100); 

           $numbers6 = mt_rand(1,100); 
       $numbers7 = mt_rand(1,100); 
       $numbers8 = mt_rand(1,100); 
       $numbers9 = mt_rand(1,100); 
       $numbers10 = mt_rand(1,100); 
       $numbers11 = mt_rand(1,100); 
       ?>
        <div id="resize">
<table width ="100%">
    <tr>
        <th>knumber</th>
        <th>WP</th>
        <th>WD</th>
        <th>ID</th>
        <th>DV</th>
        <th>HC</th>
        <th>PR</th>
    </tr>
    <tr>
        <td>K001</td>
        <td><pre><?php print_r($numbers);?></pre></td>
        <td><pre><?php print_r($numbers1);?></pre></td>
        <td><pre><?php print_r($numbers2);?></pre></td>
        <td><pre><?php print_r($numbers3);?></pre></td>
        <td><pre><?php print_r($numbers4);?></pre></td>
        <td><pre><?php print_r($numbers5);?></pre></td>

    </tr>
    <tr>
        <td>K002</td>
         <td><pre><?php print_r($numbers6);?></pre></td>
        <td><pre><?php print_r($numbers7);?></pre></td>
        <td><pre><?php print_r($numbers8);?></pre></td>
        <td><pre><?php print_r($numbers9);?></pre></td>
        <td><pre><?php print_r($numbers10);?></pre></td>
        <td><pre><?php print_r($numbers11);?></pre></td>
    </tr>

</table>
            </div>
            </body>
            </html>
  • 2 Contributors
  • 7 Replies
  • 930 Views
  • 2 Days Discussion Span
  • Latest Post Latest Post by LibraryCode
Member Avatar for diafol

From your code it looks aas though you should be outputting an array from the print_r() but you're actually only creating separate variables holding a single integer each.

From your code, what you may be able to do is the following:

$rows = 2;
$columns = 6; //count of cols from WP to PR

$table = '';
for($r=0;$r<$rows;$r++) {
    $table .= "<tr><td>K" . str_pad(($r+1),3,'0',STR_PAD_LEFT) . "</td>";
    for($c=0;$c<$columns;$c++){
        $table .= "<td>".mt_rand(1,100)."</td>";
    }
    $table .= '</tr>';
}

Then your HTML:

<div id="resize">
    <table width ="100%">
        <tr>
            <th>knumber</th>
            <th>WP</th>
            <th>WD</th>
            <th>ID</th>
            <th>DV</th>
            <th>HC</th>
            <th>PR</th>
        </tr>
        <?=$table?>
    </table>
</div>
Edited by diafol
Member Avatar for LibraryCode

Thank you.Would like to ask in what situations i need to use nested forloops?

You have very good approach,lots to learn out of it for me.
I tried to experiment a little bit. But how do i add an empty column or raw for calculations without affecting existing once?

Edited by LibraryCode
Member Avatar for diafol

No real change for HTML:

<div id="resize">
        <table width ="100%">
                <tr>
                    <th>knumber</th>
                    <th>WP</th>
                    <th>WD</th>
                    <th>ID</th>
                    <th>DV</th>
                    <th>HC</th>
                    <th>PR</th>
                    <th>Total</th>
               </tr>
               <?=createRandomTable($rows,$columns)?>
        </table>
</div>

The PHP code to go before it could be like this:

function createRandomTable($rows,$columns)
{
    $table = '';
    for($r=0;$r<$rows;$r++) {
        $table .= "<tr><td>K" . str_pad(($r+1),3,'0',STR_PAD_LEFT) . "</td>";
        $tot = 0;
        for($c=0;$c<$columns;$c++){
            $rnd = mt_rand(1,100);
            $table .= "<td>$rnd</td>";
            $tot += $rnd;
        }
        $table .= "<td>$tot</td></tr>";
    }
    return $table;
}

$rows = 2;
$columns = 6;
Member Avatar for LibraryCode

Would like to ask one more question regarding table above.I try to calculate now the average on the each column,so far i got this:

 function createRandomTable($rows,$columns)
{
    $table = '';
    for($r=0;$r<$rows;$r++) {
        $table .= "<tr><td>K" . str_pad(($r+1),3,'0',STR_PAD_LEFT) . "</td>";
        $tot = 0;
        for($c=0;$c<$columns;$c++){
            $rnd = mt_rand(1,100);
            $table .= "<td>$rnd</td>";

            $tot += $rnd;
            $thArray = ['#knum', '#wp','#id','#dv','#hc','##pr'];
            $thTotal = count($thArray);
            $avrg = round($tot/$thTotal);


        }
        $table .= "<td><strong>$avrg</strong></td></tr>";

    }
    return $table;
}



$rows = 10;
$columns = 6;


       ?>




        <div id="resize">
        <table width ="100%">

                <tr>
                    <th id="knum">knumber</th>
                    <th id="wp">WP</th>
                    <th id="wd">WD</th>
                    <th id="id">ID</th>
                    <th id="dv">DV</th>
                    <th id="hc">HC</th>
                    <th id="pr">PR</th>
                    <th>Average Grade/Student</th>
               </tr>

               <tr>
                   <td>Average Subject</td>
                   <td> <?php  function scope(){ $GLOBALS['$thArray'];}  scope(); echo $thArray;?> </td>
                   <td></td>
                   <td></td>
                   <td></td>
                   <td></td>
                   <td></td>
                   <td></td>
               </tr>

               <?=createRandomTable($rows,$columns)?>
        </table>
</div>

What is the trick to count columns?Sorry for stupid question,but i am learning how to work with tables data.

Edited by LibraryCode
Member Avatar for diafol

Good luck

Member Avatar for LibraryCode

Thank you.

Member Avatar for LibraryCode

How to count vertically values from the columns?

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.