[RESOLVED] List all possible outcomes

[leetkrew]

hello there,

i am trying to display all possible outcomes. It should display a maximum of 3 characters.

Please help... thanks =)

<?php

header("HTTP/1.0 404 Not Found"); // #/$ only

// headers... ... ...

$arr_alphabet = array (
	// 75 chars
	"A", "a", "B","b","C", "c","D", "d","E", "e","F", "f","G", "g",
	"H", "h","I", "i","J", "j","K", "k","L", "l","M", "m","N", "n",
	"O", "o","P", "p","Q", "q","R", "r","S", "s","T", "t","U", "u",
	"V", "v","W", "w","X", "x","Y", "y","Z", "z","0", "1","2", "3",
	"4", "5","6", "7","8", "9","!", "@","#", "$","%", "^","&", "*",
	"(", ")", "/","_", "-");



for ( $i=0; strlen($outcome) <= 3; $i++ )
{
	$temp = $arr_alphabet[$i];
	for ($j=0; $j <=74; $j++)
	{
		$cnt++;
		$outcome = $temp . $arr_alphabet[$j];
		echo $cnt . ")\t" . $outcome . "\n";
		usleep(floor(0.0078125*1000000));
	} 
}
?>

[NogDog]

[EDIT]On re-reading your original post, I'm not sure now that I understand the original question, so this may not be what you're looking for.[/EDIT]

<?php
$arr1 = $arr2 = $arr3 = array (
    "A", "a", "B","b","C", "c","D", "d","E", "e","F", "f","G", "g",
    "H", "h","I", "i","J", "j","K", "k","L", "l","M", "m","N", "n",
    "O", "o","P", "p","Q", "q","R", "r","S", "s","T", "t","U", "u",
    "V", "v","W", "w","X", "x","Y", "y","Z", "z","0", "1","2", "3",
    "4", "5","6", "7","8", "9","!", "@","#", "$","%", "^","&", "*",
    "(", ")", "/","_", "-"
);

foreach($arr1 as $c1)
{
   foreach($arr2 as $c2)
   {
      foreach($arr3 as $c3)
      {
         echo $c1.$c2.$c3."<br />\n";
      }
      flush();
   }
}
?>

Just be advised that you are talking about 75³ combinations, or 421,875 lines of output in this implementation.

[leetkrew]

it seems that my php skills has been rusted... (or not good enough).

thanks. I'm now using it.

[laserlight]

You only need to define one array though, since it can be reused with each foreach.

[leetkrew]

yeah.... that is what i did =)

[NogDog]

laserlight wrote:

You only need to define one array though, since it can be reused with each foreach.

I was thinking that if you used the same array, the different foreach()'s would mess each other up as they moved the array's pointer around. But a little testing would seem to indicate otherwise. Apparently each foreach() keeps independent track of its position within the array.

[laserlight]

I was thinking that if you used the same array, the different foreach()'s would mess each other up as they moved the array's pointer around. But a little testing would seem to indicate otherwise. Apparently each foreach() keeps independent track of its position within the array.

The reason is that foreach works on a copy of the array (unless references are used).

[leetkrew]

thanks for the replies...

• marked as resolved -