arrays

[michelle1963]

hi folks i am have problems with arrays

i have a function that calculates the number of combinations of all elements of an an array.

when i return the array it looks like this.

Array (
	[0] => Array (
		[0] => 111
	)
	[1] => Array (
		[0] => 201
	)
	[2] => Array (
		[0] => 301
	)
	[3] => Array (
		[0] => 74
	)
)
Array (
	[0] => Array (
		[0] => 111
		[1] => 201
	)
	[1] => Array (
		[0] => 111
		[1] => 301
	)
	[2] => Array (
		[0] => 111
		[1] => 74
	)
	[3] => Array (
		[0] => 201
		[1] => 301
	)
	[4] => Array (
		[0] => 201
		[1] => 74
	)
	[5] => Array (
		[0] => 301
		[1] => 74
	)
)
Array (
	[0] => Array (
		[0] => 111
		[1] => 201
		[2] => 301
	)
	[1] => Array (
		[0] => 111
		[1] => 201
		[2] => 74
	)
	[2] => Array (
		[0] => 111 
		[1] => 301
		[2] => 74
	)
	[3] => Array ( 
		[0] => 201 
		[1] => 301 
		[2] => 74 
	) 
)
Array ( 
	[0] => Array ( 
		[0] => 111 
		[1] => 201 
		[2] => 301 
		[3] => 74
	) 
)

which is right. however i need to be able to store each iteration of my loop into a new array so that i can display doubles trebles 4-timers etc.

I would be grateful for any advice and here is my code😕

<?php
function calculateNumberOfCombinations($newArray, $len)
{
if ($len > count($newArray))
return 'error';
$out = array();
if ($len == 1) {
foreach ($newArray as $v)
$out[] = array($v);
return $out;
}
$len--;
while (count($newArray) > $len) {
$b = array_shift($newArray);
$c = calculateNumberOfCombinations($newArray, $len);
foreach ($c as $v) {
array_unshift($v, $b);
$out[] = $v;
}
}
return $out;
}
$numberOfCombos = array(111, 201,301,74);
for($count=1;$count<=count($numberOfCombos);$count++)
{
$newArray = calculateNumberOfCombinations($numberOfCombos, $count);

print_r($newArray);
}

?>

Again Thanks

[johanafm]

$allArrays = array();
for()
{
	$newArray = calculateNumberOfCombinations();
	$allArrays[] = $newArray;
}
print_r($allArrays);

[michelle1963]

Thanks for the reply Johanafm

this is now what i have and which does print out what i want but i still need to create a new array for each iteration;

<?php
function calculateNumberOfCombinations($newArray, $len)
{
    if ($len > count($newArray))
        return 'error';
    $out = array();
    if ($len == 1) {
        foreach ($newArray as $v)
            $out[] = array($v);
        return $out;
    }
    $len--;
    while (count($newArray) > $len) {
        $b = array_shift($newArray);
        $c = calculateNumberOfCombinations($newArray, $len);
        foreach ($c as $v) {
            array_unshift($v, $b);
            $out[] = $v;
        }
    }
    return $out;
}
$numberOfCombos = array(111, 201, 301, 64, 74);
$allArrays = array();
$newArray=array();

for($count=2;$count<=count($numberOfCombos); $count++)
{
    //counted at 2 as i dont have to worry about singles
    $newArray = calculateNumberOfCombinations($numberOfCombos, $count);   

    $allArrays[] = $newArray;

}

findArray($allArrays);
function findArray($allArrays)
{
    if (!is_array($allArrays))
        die('not array');
    foreach ($allArrays as $value) {
        if (is_array($value)) {
            findArray($value);
        } else {
            echo $value.'';
        }
        echo '<br />';
    }
}

?>

this gives the following print out
111
201

111
301

111
64

111
74

201
301

201
64

201
74

301
64

301
74

64
74

111
201
301

111
201
64

111
201
74

111
301
64

111
301
74

111
64
74

201
301
64

201
301
74

201
64
74

301
64
74

111
201
301
64

111
201
301
74

111
201
64
74

111
301
64
74

201
301
64
74

111
201
301
64
74

[johanafm]

michelle1963;10940298 wrote:

i still need to create a new array for each iteration;

Not sure what you mean here, as you are creating a new array on each iteration (and storing it in $allArrays.