Question

just curious if someone knows how to merge every other sub array,

aka

$tmp = array();

$tmp[0] = array(false);
$tmp[1] = array(false);

$tmp[2] = array(false);
$tmp[3] = array(false);

$tmp[4] = array(false);
$tmp[5] = array(false);

or ….
0+1
2+3
4+5

something like this i think?

$i=0; $new=array();
foreach($tmp as $k=>$v) {
  $tmp[$k] = $v;
  if($i=$k-1) { 
    $new[] = $tmp[$i] + $tmp[$i-1]; /* or something ridiculous like that */
  }
  $i++;
} 

Answer 1

Using array_chunk and array_merge you can come up with a fairly simple solution

<?php

$result = array_chunk($tmp, 2);

foreach ($result as &$chunk)
{
    $chunk = array_merge($chunk[0], $chunk[1]);
}