PHP: how can I change variable content of a txt file?

Question

I currently try to find a solution to edit a column of a txt file, the problem is there a no column "endings?". I need to multiple the price by 1.1 & replace it with the new value (fields I need to edit 280,24 and 378,07 )

this txt updates every 12h so the prices change every 12h...

a row looks like this:

961983  5031713050124   44661802    3335    OKI 19  Lasertoner  schwarz OKI 44661802    1       ST  280,24  378,07                                  29.05.2020  Lager   Beschaffungsartikel nein

anyone has a sugesstion how i could do it?

Answer 1

Are the columns of fixed width? Then you could use preg_split as

$data = preg_split("/[\s,]+/", $input);

and search for the term ST in the array and increment the next four fields as
$num = (int)$data[index] * 1.1; $data[index] = $num;

Then build the string again using implode() as
$input = implode("\number of spaces\",$data);

Note that this maybe treated as a pseudo code of PHP, the functions exist but since I dont know whether the spaces are fixed or not or the way to write back to CSV I cant write the exact code.

Please forgive me if I couldnt solve the question exactly.