#php Bkash - Parse number of bkash messages and get total received amount

bkash_total_received.php

<?php

//messages.txt sample content 
/*
You have received Tk 800.00 from 0199999999.Ref XYZ. Fee Tk 0.00. Balance Tk 0.00. TrxID XYZABC at 15/07/2021 11:00

You have received deposit from iBanking of Tk 1,000.00 from Eastern Bank Limited Internet Banking. Fee Tk 0.00. Balance Tk 0.00. TrxID XYZABC at 14/07/2021 16:43

Cash In Tk 3,260.00 from 0199999999 successful. Fee Tk 0.00. Balance Tk 0.00. TrxID XYZABC at 14/07/2021 20:19. Download App: https://bKa.sh/8app
*/
//END messages.txt sample content

/**
 * This script will parse the first occurence of <Tk %d> from each line and then sum those
 */

$texts = explode("\n", file_get_contents('messages.txt'));

$amounts= array_map(function($text) {
    $matches = [];
    preg_match("/Tk ([\d\,]+)/", $text, $matches); //first occurence of /Tk <amount>/

    if (!empty($matches[1])) return $matches[1];
}, $texts);
$amounts = array_filter($amounts); //get rid of empty items

//get rid of commas from the formatted amounts
$amounts_sanitized = filter_var_array($amounts, FILTER_SANITIZE_NUMBER_INT);

$total = array_reduce($amounts_sanitized, function($total, $amount)  { 
    return $amount + $total; 
});

echo sprintf('Messages %s and total amount is: %s', count($amounts), number_format($total)); 

pr($amounts, false);
pr($amounts_sanitized, false);
echo implode(" + ", $amounts_sanitized);


function pr($whatever, $exit = true) {
    echo "<pre>";
    print_r($whatever);
    echo "</pre>";

    if ($exit) exit;
}