Very advance math

Jragon · July 20, 2010

<html>
<head>
  <title>Hats</title>
</head>

<body>
<?php

/*
Rules:
1 hat must be worn all day
A hat must be worn every weekday
Cant change hat once put on in the moring

Mathmatical Statment
4*4*4*4*4 = 1024

What is going to happen:
Every statment will be echoed out

E.G:
 <table>
  <tr>
   <th>Monday</th>
   <th>Tuseday</th>
   <th>Wesnesday</th>
   <th>Thesday</th>
   <th>Friday</th>
   </tr><tr>
   <td>Pink</td>
   <td>Brown</td>
   <td>Blue</td>
   <td>Red</td>
   <td>Red</td>
  </tr>
 </table>
*/

$hat1 = 'Pink';
$hat2 = 'Brown';
$hat3 = 'Blue';
$hat4 = 'Red';
$odd = true;

while ($num <= 1024){

}

?>
</body>
</html>

If you reed the notes it says what i want to do

If anyone has any ideas how i can do this it would be cool

Thanks

Jragon

Mchl · July 20, 2010

If you reed the notes it says what i want to do

No it doesn't or it does in a very cryptic way.

Jragon · July 20, 2010

It says what i want to happen

Mchl · July 20, 2010

The point is it doesn't say how the variables you have are related to do output you want. The simplest way is just to echo what you want.

echo "<table>
  <tr>
   <th>Monday</th>
   <th>Tuseday</th>
   <th>Wesnesday</th>
   <th>Thesday</th>
   <th>Friday</th>
   </tr><tr>
   <td>Pink</td>
   <td>Brown</td>
   <td>Blue</td>
   <td>Red</td>
   <td>Red</td>
  </tr>
</table>";

but I suspect it's not what you're after is it?

Jragon · July 20, 2010

No.

Because I'm lasy and dont want to make a table my self for each differnt time.

I want php to do it for me using somthing like a while loop or a for loop

in the end it would make somthing like this:

<table>

<tr>

<th>Monday</th>

<th>Tuseday</th>

<th>Wesnesday</th>

<th>Thesday</th>

<th>Friday</th>

</tr><tr>

<td>Brown</td>

</tr><tr>

</tr>

<tr>

</table>

ect.

But i have no idea how to do this

Mchl · July 20, 2010

Well I have no idea what you want.

Jragon · July 20, 2010

It is going to make a table with a differnt color hat worn every day.

Mchl · July 20, 2010

You mean permutations?

Jragon · July 20, 2010

sort ov. the first paragraph is almost correct

eddited verstion:

In mathematics, the notion of permutation is used with several slightly different meanings, all related to the act of permuting (rearranging in an ordered fashion) objects or values. Informally, a permutation of a set of values is an arrangement of those values into a particular order. Thus there are six permutations of the set {1,2,3}, namely [1,2,3], [1,3,2], [2,1,3], [2,3,1], [3,1,2], [3,2,1], [3,3,3], [2,2,2], [1,1,1], [3,3,2], [3,2,3] ECT.

Mchl · July 20, 2010

Permutations with repetitions then. The crude way looks like this.

$hats = array('pink','brown','blue','red');

foreach($hats as $hat1) {
  foreach($hats as $hat2) {
foreach($hats as $hat3) {
  foreach($hats as $hat4) {
    foreach($hats as $hat5) {
	  echo $hat1." ".$hat2." ".$hat3." ".$hat4." ".$hat5.PHP_EOL;
        }
      }
    }
  }
}

Jragon · July 20, 2010

How should i incorperate that in to a table that has the days of the week as headings and numbers down the side?

Also how dose this work?

Mchl · July 20, 2010

Come on... is it that difficult to add <tr> and <td> tags to this echo?

And as far as foreach goes... here's manual: foreach

I've created a recursive function in the meantime, but I'm afraid of even showing it to you...

Jragon · July 20, 2010

Why would you be afraid of showing me?

Jragon · July 20, 2010

Also when i am trying to add numbers to it i get this error

Parse error: syntax error, unexpected $end in C:\xampp\htdocs\mathstatment.php  on line 56

my code:

$hats = array('pink','brown','blue','red');
$i = 1;
foreach($hats as $hat1) {
  foreach($hats as $hat2) {
   foreach($hats as $hat3) {
     foreach($hats as $hat4) {
       foreach($hats as $hat5) {
        echo $i . $hat1 . " " . $hat2 . " " . $hat3 . " " . $hat4 . " " . $hat5 . PHP_EOL . '<br />';
        $i++;
      }
    }
  }
}

Mchl · July 20, 2010

That's exactly why.

Count the braces.

Jragon · July 20, 2010

fixed it =]

Jragon · July 20, 2010

where should i put the PHP_eol in my table?

also what dose that function do(i cant find it on the manual)

Mchl · July 20, 2010

I gave you a direct link to foreach manual page... how can you not find it?

PHP_EOL is a line break. I use it because I ran this script in console. For HTML you should use <br/>

Here's my recursive function if you're interested:

<?php

function permute($array,$positions,&$perms,$previous = null) {
  if($positions > 0) {
if(!isset($previous)) {
  $previous = array();
}

    foreach($array as $element) {
  $tempPrevious = $previous;
  $tempPrevious[] = $element;
  permute($array,$positions-1,$perms,$tempPrevious);
}
  } else {
    $perms[] = $previous;
  }
}

$perms = array();
$hats = array('pink','brown','blue','red');
$days = 5;

permute($hats, $days, $perms);

echo "<table>";
foreach($perms as $key => $row) {
  echo "<tr><td>".($key+1)."</td>";
  foreach($row as $hat) {
    echo "<td>$hat</td>";
  }
  echo "</tr>".PHP_EOL;
}
echo "</table>";

Jragon · July 20, 2010

This is mine

<html>
<head>
  <title>Hats</title>
  <style type="text/css">
   th { background-color: #999;}
   .odd_row { background-color: #EEE; }
   .even_row { background-color: #FFF; }
  </style>
</head>

<body>
  <table border="0">
   <tr>
<th>Number</th>
    <th>Monday</th>
<th>Tuseday</th>
<th>Wesnesday</th>
<th>Thesday</th>
<th>Friday</th>
   </tr>
<?php

/*
Rules:
1 hat must be worn all day
A hat must be worn every weekday
Cant change hat once put on in the moring

Mathmatical Statment
4*4*4*4*4 = 1024

What is going to happen:
Every statment will be echoed out

E.G:
 <table>
  <tr>
   <th>Monday</th>
   <th>Tuseday</th>
   <th>Wesnesday</th>
   <th>Thesday</th>
   <th>Friday</th>
   </tr><tr>
   <td>Pink</td>
   <td>Brown</td>
   <td>Blue</td>
   <td>Red</td>
   <td>Red</td>
  </tr>
 </table>
*/

$hats = array('pink','brown','blue','red');
$i = 1;
foreach($hats as $hat1) {
  foreach($hats as $hat2) {
   foreach($hats as $hat3) {
     foreach($hats as $hat4) {
       foreach($hats as $hat5) {
echo ($odd == true) ? '<tr class="odd_row">' : '<tr class="even_row">';
echo <<<ENDHTML
<td>{$i}</td>
<td>{$hat1}</td>
<td>{$hat2}</td>
<td>{$hat3}</td>
<td>{$hat4}</td>
<td>{$hat5}</td>
</tr>
ENDHTML;
        $odd = !$odd;
        $i++;
        }
      }
    }
  }
}
?>
  </table>
</body>
</html>

Thanks for the help

Jragon

Mchl · July 20, 2010

For ultimate fun do

echo <<<ENDHTML
<td>{$i}</td>
<td style="background: {$hat1};">{$hat1}</td>
<td style="background: {$hat2};">{$hat2}</td>
<td style="background: {$hat3};">{$hat3}</td>
<td style="background: {$hat4};">{$hat4}</td>
<td style="background: {$hat5};">{$hat5}</td>
</tr>
ENDHTML;

Jragon · July 20, 2010

Thats cool!

is there anyway to change the text color cos its a little hard to read

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