PHP - How would one go about combining 3 different arrays into one - php

Question

So i have 3 different ( yet they share some similarities ) and i would like to combine these into one to perform some calculations
Array
(
[0] => Array
(
[0] => Agent
[1] => Answered
[2] => Missed
[3] => Contribution
[4] => Per Hour
[5] => Total Ring Time
[6] => Mean Ring Time
[7] => Total Talk Time
[8] => Mean Talk Time
[9] => Total Wrap Time
[10] => Mean Wrap Time
[11] => Total Session Time
[12] => Mean Session Time
[13] => Number of Sessions
[14] => % Util
[15] => Agent Hang-Ups
[16] => Caller Hang-Ups
[17] => Agent Hang-Ups Percent
[18] => Caller Hang-Ups Percent
)
[1] => Array
(
[0] => Amber
[1] => 16
[3] => 2.0%
[4] => 0.2
[5] => 28.6
[6] => 1.8
[7] => 1861.1
[8] => 116.3
[9] => 0.0
[10] => 0.0
[11] => 234862.2
[12] => 3403.8
[13] => 69.0
[14] => 0.8%
[15] => 10
[16] => 6
[17] => 62.5%
[18] => 37.5%
)
[2] => Array
(
[0] => Amie
[1] => 106
[3] => 13.5%
[4] => 3.0
[5] => 721.7
[6] => 6.8
[7] => 12268.0
[8] => 115.7
[9] => 0.0
[10] => 0.0
[11] => 127011.0
[12] => 6350.5
[13] => 20.0
[14] => 9.7%
[15] => 54
[16] => 52
[17] => 50.9%
[18] => 49.1%
)
)
Array 2
Array
(
[0] => Array
(
[0] => Agent
[1] => Answered
[2] => Missed
[3] => Contribution
[4] => Per Hour
[5] => Total Ring Time
[6] => Mean Ring Time
[7] => Total Talk Time
[8] => Mean Talk Time
[9] => Total Wrap Time
[10] => Mean Wrap Time
[11] => Total Session Time
[12] => Mean Session Time
[13] => Number of Sessions
[14] => % Util
[15] => Agent Hang-Ups
[16] => Caller Hang-Ups
[17] => Agent Hang-Ups Percent
[18] => Caller Hang-Ups Percent
)
)
Array 3
[0] => Array
(
[0] => Agent
[1] => Answered
[2] => Missed
[3] => Contribution
[4] => Per Hour
[5] => Total Ring Time
[6] => Mean Ring Time
[7] => Total Talk Time
[8] => Mean Talk Time
[9] => Total Wrap Time
[10] => Mean Wrap Time
[11] => Total Session Time
[12] => Mean Session Time
[13] => Number of Sessions
[14] => % Util
[15] => Agent Hang-Ups
[16] => Caller Hang-Ups
[17] => Agent Hang-Ups Percent
[18] => Caller Hang-Ups Percent
)
[1] => Array
(
[0] => (7312
[1] => 1
[3] => 0.0%
[4] => 459.8
[5] => 0.0
[6] => 0.0
[7] => 0.4
[8] => 0.4
[9] => 0.0
[10] => 0.0
[11] => 7.8
[12] => 2.6
[13] => 3.0
[14] => 5.5%
[15] => 1
[17] => 100.0%
[18] => 0.0%
)
[2] => Array
(
[0] => Amber
[1] => 414
[2] => 9
[3] => 9.3%
[4] => 6.3
[5] => 1880.1
[6] => 4.4
[7] => 65209.8
[8] => 157.5
[9] => 240.4
[10] => 0.6
[11] => 234862.2
[12] => 3403.8
[13] => 69.0
[14] => 27.8%
[15] => 290
[16] => 124
[17] => 70.0%
[18] => 30.0%
)
So in this example i have 3 arrays, all have the same first initial array. But these arrays can differ in size and they may not share the same people in in.
People can also be in different places so i.e.
Array 1 : Common -> Amber -> Amie
Array 2 : Common ->
Array 3 : Common -> 7312 -> Amber ->Amie
Now the final array should look like
Array 4 : Common -> 7312 -> Amber -> Amie
All the values from all arrays should also be combined so i.e:
Amber 1st array / 1st value : 16
Amber 2nd array / 2nd value : 414
Amber final array value : 414 + 16 = 430
Hopefully i have made question clear.

Answer 1

Basically, you sum up all the info you got, remove the headers. Then rebuild a new array with the info consolidation.
//merge all arrays, remove the first element, it is headers.
$my_total_array = array_merge(
array_splice($array1,1),
array_splice($array2,1),
array_splice($array3,1)
);
$myagents = array();
foreach($my_total_array as $agent){
if(!isset($myagents[$agent[0]])){
//Never met the agent, add them.
$myagents[$agent[0]] = $agent;
}else{
//We already seen the agent, do maths.
$myagents[$agent[0]][1]+=$agent[1];
//TODO: Apply consolidation rules for other fields.
}
}
//Put the headings back at the beggining.
array_unshift($myagents,$array1[0]);
print_r($myagents);
I hope this helps.
EDIT: From PHP Docs
Merges the elements of one or more arrays together so that the values
of one are appended to the end of the previous one. It returns the
resulting array.
If the input arrays have the same string keys, then the later value
for that key will overwrite the previous one. If, however, the arrays
contain numeric keys, the later value will not overwrite the original
value, but will be appended.