<?php
 
//https://i...content-available-to-author-only...e.com/qQJDfQ
 
$tariffs = ['tariff0' => 0, 'tariff1' => 1,'tariff2' => 3,'tariff3' => 5];
 
$calls = [ [ "A-number" => "79222222222",
			 "B-number" => "79111111111",
			 "duration" => 127,
			 "tariff" => "tariff1"
			 ],
           [ "A-number" => "79111111111",
			 "B-number" => "79222222222",
			 "duration" => 53,
			 "tariff" => "tariff2"
			 ],
           [ "A-number" => "79222222222",
			 "B-number" => "79333333333",
			 "duration" => 671,
			 "tariff" => "tariff0"
			 ],
           [ "A-number" => "79333333333",
			 "B-number" => "79222222222",
			 "duration" => 632,
			 "tariff" => "tariff3"
			 ],
           [ "A-number" => "79111111111",
			 "B-number" => "79333333333",
			 "duration" => 331,
			 "tariff" => "tariff1"
			 ]
		   ];
 
var_dump($calls);
function showCallsInfo($phoneNumber, $calls, $tariffs) {
    $totalCost = 0;
    $result = [];
 
    foreach ($calls as $call) {
        if ($call['A-number'] === $phoneNumber) {
            $direction = 'исходящий';
            $cost = $call['duration'] * $tariffs[$call['tariff']];
            $totalCost += $cost;
        } elseif ($call['B-number'] === $phoneNumber) {
            $direction = 'входящий';
            $cost = 0;
        }
 
        $result[] = [
            'number' => $call['A-number'] === $phoneNumber ? $call['B-number'] : $call['A-number'],
            'direction' => $direction,
            'duration' => $call['duration'],
            'tariff' => $direction === 'исходящий' ? $call['tariff'] : '',
            'cost' => $cost
        ];
    }
 
    echo "Номер: $phoneNumber\n";
 
    foreach ($result as $call) {
        echo sprintf(
            "%s %s %d сек. %s\n",
            $call['number'],
            $call['direction'],
            $call['duration'],
            $call['tariff']
        );
    }
 
    echo "К оплате: " . number_format($totalCost, 2) . " руб.\n";
}
 
 
showCallsInfo('79222222222', $calls, $tariffs);
 

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