PHP Formatting A Column (dollar sign) In csv Upload Script - php

Question

I have a script that uploads a csv file with 3 columns (phone, name, amount). The script removes any formatting on the phone, ie; ()- and puts the file on the server. The amount column in the file shows the amount like 125.00 and I need it to show $125.00. Any help would be much appreciated.
$file_destination = '/****/****/****/***/' . $file_name_new;
$contents = file_get_contents($file_tmp);
$contents = str_replace("(","",$contents);
$contents = str_replace(")","",$contents);
$contents = str_replace("-","",$contents);
file_put_contents($file_tmp, $contents);
if(move_uploaded_file($file_tmp, $file_destination)) {

Answer 1

Whether you want to reformat the values strictly for output or store the new formatted data in your CSV file, it's probably going to be more effective to use fgetcsv and fputcsv. Those functions are designed for properly reading in and writing out CSV formatted files.
Example
$rows = [];
if (($handle = fopen($file_tmp, "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
list($phone, $name, $amount) = $data;
$phone = str_replace(['(',')','-'], '', $phone);
$amount = sprintf('$%.2f', $amount);
// you can build a new array with the updated values
$rows[] = [$phone, $name, $amount];
// or output directly
echo "$phone | $name | $amount";
}
fclose($handle);
}
// if you want to save the destination with the updated information...
$fp = fopen($file_destination, 'w');
foreach ($rows as $fields) {
fputcsv($fp, $fields);
}
fclose($fp);