simple no abstraction csv parser

parseCsv.php

<?php

function parseCsv($csv, $delimiter = ',')
{
    // parse rows
    $rows = explode("\n", trim($csv));
    
    // parse header and header columns
    $header = explode($delimiter, trim(reset($rows)));
    
    // remove header
    unset($rows[0]);
    
    $result = [];
    foreach($rows as $lineNr => $line)
    {
        // parse columns
        $columns = explode($delimiter, trim($line));
        foreach($columns as $index => $value) {
            // add column value together with header column name
            $result[$lineNr][$header[$index]] = $value;
        }
    }
    
    return $result;
}

$csv = 'id,name,email
1,jan,[email protected]
2,jaap,[email protected]
3,cas,[email protected]
';

$aCsv = parseCsv($csv);
print_r($aCsv);

/*
Array
(
    [1] => Array
        (
            [id] => 1
            [name] => jan
            [email] => [email protected]
        )

    [2] => Array
        (
            [id] => 2
            [name] => jaap
            [email] => [email protected]
        )

    [3] => Array
        (
            [id] => 3
            [name] => cas
            [email] => [email protected]
        )
)
*/