^^&&^^

Edit File: FileReader.inc

<?php
/**
 * Author:		Shlomi
 * Date:		Sep 6, 2017 10:43:44 AM
 * Founder:		Shlomi Bazak (SBZsoft) (c)
 * File: 		FileInfo.inc
 *  
 * Description:
 *		
 */
namespace B2\FS; 
use B2\Exceptions\FileException;
use B2\Exceptions\B2Exception;

// No direct access.
defined("__NSS__") or die("Restrected Access.");

class FileReader extends FileHandler{
	
	const CHUNK_SIZE = 1000000; // 1MB
	
	private $_chunkSize;
	
	/**
	 * Create a new instance of file reader.
	 * @param string $path path to the file to read.
	 */
	public function __construct($path){
		parent::__construct($path);
		$this->_chunkSize = self::CHUNK_SIZE;
	}
	
	/**
	 * Set size of chanks to be the default read length.
	 * @param int $size
	 */
	public function setChunkSize($size){
		$size = (int)$size;
		if($size <= 0) throw new B2Exception("Function " . __CLASS__."::".__METHOD__ . " expects size to be positive integer. Got $size");
		$this->_chunkSize = (int)$size; 
	}
	
	public function getChunkSize() { return $this->_chunkSize; }
	
	/**
	 * read next set of chars.
	 * If $length is 0|null it will use the internal chunkSize. 
	 * @param int $length the max length of bytes to read.
	 * @throws FileException if there is an error in reading.
	 * @return string the readen data
	 */
	public function &read($length=null) { 
		if($this->eof()) throw new FileException("Unable to read, we've hit EOF ");
		$length = (int)$length;
		if(!$length) $length = $this->_chunkSize;
		$bytes = fread($this->_handle, $length);
		if($bytes === false) throw new FileException("Unable to read from file {$this->_fileName}");
		return $bytes;
	} 
	
	/**
	 * If we hit EoF it will return null, B2\FS\FileChunk otherwise.
	 * @throws FileException if there is an error in reading.
	 * @return NULL|\B2\FS\FileChunk 
	 */
	public function getNextChunk(){
		if($this->eof()) return null;
		return new FileChunk($this->read());
	}
	
	public function getNextChunkStream(){
		if($this->eof()) return null;
		return new FileChunkStream($this);
	}
	
	/**
	 * Read file on the fly.
	 * @return string
	 */
	public function getContents() { 
		$data = "";
		$lastPos = $this->getCursor();
		$this->rewind();
		while(!$this->eof()) {
			$data .= $this->read();
		}
		$this->seekSet($lastPos);
		return $data;
	}
	
}