[RESOLVED] Array Help

[bigthicketcoder]

I have a group of numbers I need to put into an array. The numbers start at 0 and increase by 2 for a series of six (e.g. 0, 2, 4, 6, 8, 10) but then jump 26 and the next series continue increasing by 2 (e.g. 36, 38, 40, 42, 44, 46) and on and on. I know I could do the following:

$numArray = array();

$numArray[0] = 0; // starts at 0
$numArray[1] = 2; // increases by 2
$numArray[2] = 4;
$numArray[3] = 6;
$numArray[4] = 8;
$numArray[5] = 10;

$numArray[6] = 36; // increases by 26
$numArray[7] = 38; // then back to increase by 2
$numArray[8] = 40;
$numArray[9] = 42;
$numArray[10] = 44;
$numArray[11] = 46;

$numArray[12] = 72; // increases by 26
$numArray[13] = 74; // then back to increase by 2
$numArray[14] = 76;
$numArray[15] = 78;
$numArray[16] = 80;
$numArray[17] = 82;

and this works fine, but I potentially have hundreds, even thousands of numbers and I don't want to hard code all that.

---

I've tried the following:

$number = 0;
for ($x=0; $x < 8; $x++)
{
$groupStep = 24; // number to increase by for each group

// Create loop for groups of 6 numbers
$increment = 2;   // number to increase each number
$numArray = array();

for($i=0; $i<=5; $i++)
{
	$numArray[$i] = $number;
	$number = $number + $increment;   

}
// Increase by 24 for the next group of 6 answers
$number = $number + $groupStep;

}

And this works but only for display. My array keeps getting started over. I just don't know enough about arrays to figure out what I'm doing wrong. I've searched and searched but haven't been able to find anything. Any assistance or a point to where I can read a solution would be much appreciated.

[laserlight]

You could make use of [man]range/man and [man]array_merge/man, e.g.,

$n = 82;
$numbers = array();
for ($i = 0; $i < $n; $i += 36) {
    $numbers = array_merge($numbers, range($i, $i + 10, 2));
}

[bigthicketcoder]

Thank you. That works great. I'm going through it and looking on php.net to try and understand it to see how I can modify it for my next set of numbers I need an array. I'm not sure though.

My next set are also in groups of 6, but start at 19 then decrease by 4, increase by 12, decrease by 4, increase by 12, decrease by 4 (e.g., 19, 15, 27, 23, 35, 31) then increase by 24 before beginning the next group of 6 (e.g., 55, 51, 63, 59, 71, 67).

I'll keep working with the range() and array_merge() to see if I can solve it.

Thanks!

[bigthicketcoder]

Thanks again. Rather than try to figure it out with -4, +12 so many times, I just used what you had provided and just go straight up...

$n = 107;
$numbers = array();
for ($i = 15; $i < $n; $i += 36) {
    $numbers = array_merge($numbers, range($i, $i + 20, 4));
}