parsing textarea input with PHP as if its a csv?

Question

hey all i'm trying to make a site where people paste a CSV file directly into a textarea (say its called "original-text") and parse it, with my script then generating something from that. i know how to parse a csv file on the server (using fgetcsv) but not how to get the input from a POST variable INTO that fgetcsv. so far i've tried something like this, to no avail:

$file_handle = fopen("php://input", "r");

while (!feof($file_handle) ) {
    $line_of_text = fgetcsv($file_handle);
    echo $line_of_text[0] . '<br />';
}

Answer 1

fgetcsv() has a cousin named str_getcsv() that should do exactly what you need. As so often, wonderfully named (once without, once with underscore). Ah well! But we still love PHP, don't we.

Example (with no sanitation!!! I can't see any necessary at this point, though.)

$array_csv = str_getcsv($_POST["csv"]);