试图在PHP中将CSV行作为二维数组

Question

So I'm trying to read a CSV which has a couple of lines and will be compared with a User-Input. This input is an array of id's the user chooses ($talente). The array with the id's will be splitted, the script opens the CSV and reads the line equal to the id's. It works nice but reads the CSV line by line into another one-dimensional array. But I need the lines to be an array already, so that I get a two-dimensional array at the end.

My script so far looks like this:

<?php

$talente = $_GET['talente'];

$talentline = array();

$i = 0;
$myFile = fopen("talente.csv", "r");

foreach ($talente as $talent) {
    if ($talent == $i+1) {          
        while (($data = fgetcsv($myFile, 1000, ",")) !== FALSE) {

            $num = count($data);

                for ($c=0; $c < $num; $c++) {
                    $talentline[][] = $data[$c];
                }

        //$talentline[] = $lines[$i];

        }
        fclose($myFile);
    }
    $i++;

}

print_r(array_values($talentline));

/*echo $talentline[1];
echo $talentline[2];
*/
?>

The outcome so far is every line with every element, but in a one-dimensional array instead of a two-dimensional:

Array ( [0] => Array ( [0] => Schild ) [1] => Array ( [0] => 1 ) [2] => Array ( [0] => Licht ) [3] => Array ( [0] => 1w10 ) [4] => Array ( [0] => - ) [5] => Array ( [0] => Schutz ) [6] => Array ( [0] => 1 ) [7] => Array ( [0] => Licht ) [8] => Array ( [0] => 1w10 ) [9] => Array ( [0] => - ) [10] => Array ( [0] => Licht ) [11] => Array ( [0] => 4 ) [12] => Array ( [0] => Licht ) [13] => Array ( [0] => 1w10 ) [14] => Array ( [0] => - ) [15] => Array ( [0] => Genesung ) [16] => Array ( [0] => 1 ) [17] => Array ( [0] => Licht ) [18] => Array ( [0] => - ) [19] => Array ( [0] => - ) [20] => Array ( [0] => Aufopfern ) [21] => Array ( [0] => 1 ) [22] => Array ( [0] => Licht ) [23] => Array ( [0] => - ) [24] => Array ( [0] => - ) ) 

Answer 1

What about this? Read the CSV once for speed, then use array_filter and in_array to filter the CSV down to the desired rows.

<?php

$talente = $_GET['talente'];

$myFile = fopen("talente.csv", "r");
$csv = [];
while ($data = fgetcsv($myFile, 1000, ",")) {
    $csv[] = $data;
}
fclose($myFile);

$talentLine = array_filter($csv, function($key) use ($talente) {
    return in_array($key, $talente);
}, ARRAY_FILTER_USE_KEY);

print_r(array_values($talentline));