通过php更改行名称csv

Question

由于我最近通过PHP使用CSV，所以我在询问有关通过PHP取消CSV行的问题之后又提出了另一个问题：Unset rows (based on row name) csv through php

我在第一行名称上有一个CSV文件：col1; col2; col3，col4，col5

如何更改特定列的名称，例如：＆＃34; col1＆＃34;到＆＃34;第1列和第34列，＆＃34;第4列＆＃34;到第4栏和第34栏。

这就是我现在所拥有的：

<?php

$inFile  = 'removed_headers.csv';
$outFile = 'final_headers.csv';
$delimiter = ';';
$enclosure = '"';   

$originals = array(0 => "RBI_Articlenr.", 1 => "Brand");
$replacements = array(0 => "sku", 1 => "manufacturer");

$write = fopen($outFile, 'w');

if ($write) {
    $rows = file($inFile);
    $first = false;
    foreach($rows as $row) {


        $csvToPHP = str_getcsv($row, $delimiter, $enclosure);
        if (!$first) {
            $headers = array_flip($csvToPHP);

            $first = true;          
        }

        $headers = array_replace($originals, $replacements);


        // now the headers array is how it should be

        // how to set the value's of $header to $csvToPHP ?


        fputcsv($write, $csvToPHP, $delimiter, $enclosure);
    }   
}
fclose($write);