Output of all result of grouped array - php

Question

I hope you could help me on how should I make this output be done.
CSV file
Department,Name,Employee No.,Date Time
LMS,"Bach, Jerome",102,6/30/2014 12:23
MTS,"Lorvia, Christine",103,6/16/2014 9:31
SSS,Jannah Curtis,104,6/16/2014 8:45
SSS,Jannah Curtis,104,6/28/2014 14:29
ITM,Sassy Mica,105,6/17/2014 9:12
ITM,Sassy Mica,105,6/17/2014 20:43
ITM,Sassy Mica,105,6/18/2014 9:12
I already grouped the department and this is the output
[MTS] => Array
(
[103] => Array
(
[0] => MTS
[1] => Lorvia Christine
[2] => 103
[3] => 6/16/2014 9:31
)
)
[SSS] => Array
(
[104] => Array
(
[0] => SSS
[1] => Jannah Curtis
[2] => 104
[3] => 6/28/2014 14:29
)
)
[ITM] => Array
(
[105] => Array
(
[0] => ITM
[1] => Sassy Mica
[2] => 105
[3] => 6/18/2014 9:12
)
)
but I want an output that will result all her date/time record under the element [3].
Ex.
[ITM] => Array
(
[105] => Array
(
[0] => ITM
[1] => Sassy Mica
[2] => 105
[3] => 6/17/2014 9:12
=> 6/17/2014 20:43
=> 6/18/2014 9:12
)
)
While the time record is sorted.

Answer 1

You don't have a choice. You need to process them accordingly. The array format you desire is invalid, since they cannot share the same key, just create another dimension for the time. Example:
$data = array();
$handle = fopen('sample.csv', 'r');
while(!feof($handle)) {
$row = fgetcsv($handle, '4096');
if(!isset($data[$row[0]][$row[2]])) {
// simple assignment
$data[$row[0]][$row[2]] = array($row[0], $row[1], $row[2], array($row[3],));
} else {
// process
$data[$row[0]][$row[2]][3][] = $row[3]; // push it inside instead of assigning a new one
$temp = $data[$row[0]][$row[2]][3]; // temporary storage
$temp = array_map(function($var){
return strtotime($var); // convert to unix time
}, $temp);
sort($temp); // sort ascending
$data[$row[0]][$row[2]][3] = array_map(function($var){
return date('m/d/Y H:i', $var); // return to old format with sorted values
}, $temp);
}
}
array_shift($data); // remove the first (the header)
echo '<pre>';
print_r($data);
Should yield something like:
Array
(
[LMS] => Array
(
[102] => Array
(
[0] => LMS
[1] => Bach, Jerome
[2] => 102
[3] => Array
(
[0] => 6/30/2014 12:23
)
)
)
[MTS] => Array
(
[103] => Array
(
[0] => MTS
[1] => Lorvia, Christine
[2] => 103
[3] => Array
(
[0] => 6/16/2014 9:31
)
)
)
[SSS] => Array
(
[104] => Array
(
[0] => SSS
[1] => Jannah Curtis
[2] => 104
[3] => Array
(
[0] => 06/16/2014 08:45
[1] => 06/28/2014 14:29
)
)
)
[ITM] => Array
(
[105] => Array
(
[0] => ITM
[1] => Sassy Mica
[2] => 105
[3] => Array
(
[0] => 06/17/2014 09:12
[1] => 06/17/2014 20:43
[2] => 06/18/2014 09:12
)
)
)
)