Convert csv into array but split array by same date and execute a function on each array
CSV:
0021044-1;16/02/2022;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15
0021044-2;16/02/2022;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15
0021064-1;21/01/2022;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15
0021064-1;21/01/2022;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15
0021067-1;19/01/2022;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15
0021087-1;14/01/2022;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15
0021087-2;14/01/2022;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15
I'm splitting the array with the following PHP code:
$csv = array_map(function ($v) {
return str_getcsv($v, ";");
}, file($file);
// Where file stands for the csv file being loaded.
Which gives me the following array
Array
(
[0] => Array
(
[0] => 0021044-1
[1] => 16/02/2022
[2] => 1
[3] => 2
[4] => 3
[5] => 4
[6] => 5
[7] => 6
[8] => 7
[9] => 8
[10] => 9
[11] => 10
[12] => 11
[13] => 12
[14] => 13
[15] => 14
[16] => 15
)
[1] => Array
(
[0] => 0021044-2
[1] => 16/02/2022
[2] => 1
[3] => 2
[4] => 3
[5] => 4
[6] => 5
[7] => 6
[8] => 7
[9] => 8
[10] => 9
[11] => 10
[12] => 11
[13] => 12
[14] => 13
[15] => 14
[16] => 15
)
[2] => Array
(
[0] => 0021064-1
[1] => 21/01/2022
[2] => 1
[3] => 2
[4] => 3
[5] => 4
[6] => 5
[7] => 6
[8] => 7
[9] => 8
[10] => 9
[11] => 10
[12] => 11
[13] => 12
[14] => 13
[15] => 14
[16] => 15
)
[3] => Array
(
[0] => 0021064-1
[1] => 21/01/2022
[2] => 1
[3] => 2
[4] => 3
[5] => 4
[6] => 5
[7] => 6
[8] => 7
[9] => 8
[10] => 9
[11] => 10
[12] => 11
[13] => 12
[14] => 13
[15] => 14
[16] => 15
)
[4] => Array
(
[0] => 0021067-1
[1] => 19/01/2022
[2] => 1
[3] => 2
[4] => 3
[5] => 4
[6] => 5
[7] => 6
[8] => 7
[9] => 8
[10] => 9
[11] => 10
[12] => 11
[13] => 12
[14] => 13
[15] => 14
[16] => 15
)
[5] => Array
(
[0] => 0021087-1
[1] => 14/01/2022
[2] => 1
[3] => 2
[4] => 3
[5] => 4
[6] => 5
[7] => 6
[8] => 7
[9] => 8
[10] => 9
[11] => 10
[12] => 11
[13] => 12
[14] => 13
[15] => 14
[16] => 15
)
[6] => Array
(
[0] => 0021087-2
[1] => 14/01/2022
[2] => 1
[3] => 2
[4] => 3
[5] => 4
[6] => 5
[7] => 6
[8] => 7
[9] => 8
[10] => 9
[11] => 10
[12] => 11
[13] => 12
[14] => 13
[15] => 14
[16] => 15
)
)
However, what I want to do is get the lines with the same date and perform a function on them
e.g;
Put the values
0021044-1;16/02/2022;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15
0021044-2;16/02/2022;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15
Then do a function on this array
0021064-1;21/01/2022;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15
0021064-1;21/01/2022;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15
Then do same function on this array
0021067-1;19/01/2022;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15
Then do same function on this array
0021087-1;14/01/2022;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15
0021087-2;14/01/2022;1;2;3;4;5;6;7;8;9;10;11;12;13;14;15
Then do same function on this array
So in short, the function should be applied to a newly generated array out of this one, array as follows:
$new_array = Array
(
[0] => Array
(
[0] => 0021044-1
[1] => 16/02/2022
[2] => 1
[3] => 2
[4] => 3
[5] => 4
[6] => 5
[7] => 6
[8] => 7
[9] => 8
[10] => 9
[11] => 10
[12] => 11
[13] => 12
[14] => 13
[15] => 14
[16] => 15
)
[1] => Array
(
[0] => 0021044-2
[1] => 16/02/2022
[2] => 1
[3] => 2
[4] => 3
[5] => 4
[6] => 5
[7] => 6
[8] => 7
[9] => 8
[10] => 9
[11] => 10
[12] => 11
[13] => 12
[14] => 13
[15] => 14
[16] => 15
)
do the function csv2xml($new_array); And then the second find of the other date etc... do the function again etc..
All the sub arrays created on their appropriate date will then go to a function which I have covered already in a function called csv2xml($arr)
Though, I'm not succeeding in splitting the array into array's per date.
Can someone guide me in the correct direction?
I think it's a lot of for, while and loops nested in eachother but my brain is currently melting on this..
If the rows will always have the 2 dates following each other you can simply walk through the file calling your function on every other line, with a little check for those dates where only one line exists
I made up a little function to mimic your call that just prints the 2 dates to make sure it works.
function call_function($a1, $a2)
{
echo sprintf( "The 2 dates are %s and %s\n", $a1[1] , $a2[1]);
}
$f = fopen('tst.csv', 'r');
$last_date = NULL;
$last_line = NULL;
while ( ($line = fgetcsv($f, 1024, ';')) !== FALSE){
if ( $line[1] == $last_date ){
// we got the second of a set of dates so call your function
call_function($last_line, $line);
} else {
$last_date = $line[1];
$last_line = $line;
}
}
RESULTS
The 2 dates are 16/02/2022 and 16/02/2022
The 2 dates are 21/01/2022 and 21/01/2022
The 2 dates are 14/01/2022 and 14/01/2022