Vendor/phpspreadsheet/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Helper/Sample.php
public function logRead($format, $path, $callStartTime)
    {
        $callEndTime = microtime(true);
        $callTime = $callEndTime - $callStartTime;
        $message = "Read {$format} format from <code>{$path}</code>  in " . sprintf('%.4f', $callTime) . ' seconds';

        $this->log($message);
    }
public function logRead($format, $path, $callStartTime)
    {
        $callEndTime = microtime(true);
        $callTime = $callEndTime - $callStartTime;
        $message = "Read {$format} format from <code>{$path}</code>  in " . sprintf('%.4f', $callTime) . ' seconds';

        $this->log($message);
    }
Log a line about the read operation.

@param string $format
@param string $path
@param float $callStartTime