Combine Multiple Arrays - based on number? - php

Question

It seems easy, but can't figure out how to do this. The current array data is listed by date and amount by date, so I need to combine all the dates: day, month, 6 month, 1 year. I need to arrange the array data to look like the second array below.
array
0 => enter code here
array
'1_day' => int 37
1 =>
array
'30_day' => int 3275
2 =>
array
'180_day' => int 3908
3 =>
array
'1_year' => int 6933
4 =>
array
'date' => string '2013-02-13' (length=10)
5 =>
array
'1_day' => int 46
6 =>
array
'30_day' => int 3134
7 =>
array
'180_day' => int 3764
8 =>
array
'1_year' => int 6820
9 =>
array
'date' => string '2013-02-12' (length=10)
10 =>
array
'1_day' => int 61
11 =>
array
'30_day' => int 3127
12 =>
array
'180_day' => int 3750
13 =>
array
'1_year' => int 6807
14 =>
array
'date' => string '2013-02-11' (length=10)
array
0 =>
'1_day' => int 37
'30_day' => int 3275
'180_day' => int 3908
'1_year' => int 6933
'date' => string '2013-02-13' (length=10)
1 =>
'1_day' => int 46
'30_day' => int 3134
'180_day' => int 3764
'1_year' => int 6820
'date' => string '2013-02-12' (length=10)
2 =>
'1_day' => int 61
'30_day' => int 3127
'180_day' => int 3750
'1_year' => int 6807
'date' => string '2013-02-11' (length=10)

Answer 1

Untested, but this should get you close:
<?php
$result = array();
for ($i = 0; $i <= count($array); $i++)
{
if ($array[$i] == 'date')
{
$result[] = array(
'1_day' => $array[$i-4],
'30_day' => $array[$i-3],
'180_day' => $array[$i-2],
'1_year' => $array[$i-1],
'date' => $array[$i],
);
}
}

Answer 2

Try this one....
$result = array();
$i = 0;
foreach($data as $key => $d)
{
$result[$i]['1_day'] = $data[$key]['1_day'];
$result[$i]['30_day'] = $data[$key+1]['30_day'];
$result[$i]['180_day'] = $data[$key+2]['180_day'];
$result[$i]['1_year'] = $data[$key+3]['1_year'];
$result[$i]['date'] = $data[$key+4]['date'];
$key = $key+5;
$i++;
}

Answer 3

Another approach:
<?php
$count = count($inArray);
//In place subarray merger, by this you don't have to modify keys every time they change.
//Constraint: A sub-array at every index.
for ($idx =0, $jdx =0; $idx < $count; $idx +=5, $jdx++) {
$inArray[$jdx] = array_merge($inArray[$idx],
$inArray[$idx +1],
$inArray[$idx +2],
$inArray[$idx +3],
$inArray[$idx +4]);
}
array_splice ($inArray, $count/5);
/* OR into another array */
for ($idx =0, $jdx =0; $idx < $count; $idx +=5, $jdx++) {
$newArray[$jdx] = array_merge($inArray[$idx],
$inArray[$idx +1],
$inArray[$idx +2],
$inArray[$idx +3],
$inArray[$idx +4]);
}
?>