BigFileTools\Driver\NativeReadDriver

Complexity

Total Complexity

3

Size/Duplication

Total Lines	27
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	2

Importance

Changes	2
Bugs	1	Features	0

1 Method

Rating	Name	Duplication	Size	Complexity
A	getFileSize()	0	19	3

<?php

namespace BigFileTools\Driver;

use Brick\Math\BigInteger;

class NativeReadDriver implements ISizeDriver
{
	/**
	 * Returns file size by reading whole files and counting read bites
	 * @link http://stackoverflow.com/questions/5501451/php-x86-how-to-get-filesize-of-2gb-file-without-external-program/5504829#5504829
	 * @inheritdoc
	 */
	public function getFileSize($path)
	{
		$fp = fopen($path, "rb");
		if (!$fp) {
			throw new Exception("Cannot read from file.");
		}

		flock($fp, LOCK_SH);
		rewind($fp);
		$fileSize = BigInteger::zero();
		$chunkSize = 1024 * 1024;
		while (!feof($fp)) {
			$readBytes = strlen(fread($fp, $chunkSize));
			$fileSize = $fileSize->plus($readBytes);
		}
		flock($fp, LOCK_UN);
		fclose($fp);
		return $fileSize;
	}
}