<?php
/**
* Class used for file operations.
* The class is final, meaning it can not be extended anymore.
*
* @author Marius Zadara <marius@zadara.org>
* @copyright Marius Zadara <marius@zadara.org>
* @final
*/
final class File
{
// the file path
private $path;
// date and time
private $dateTime = false;
// mime type
private $mimeType = false;
/**
* Constructor
*
* @param string $path The absolute path of the file
*/
public function __construct($path)
{
$this->path = $path;
// read the exif information
$this->readExif();
}
/**
* This function will try to read the exif data from the file
* and update the class members with the information found.
*
* If the datetime field has not been found, it will be updated with the time
* the file has been last modified.
*
*/
private function readExif()
{
// init the default values
$fileDateTime = false;
$mimeType = false;
// try to read the exif data from the file
$exifData = @read_exif_data($this->path);
// has the date been read ?
if ($exifData !== false)
{
// FileDateTime ///////////////////////////////////////////////////////////////////////
// if (isset($exifData['FileDateTime']))
// {
// // load directly from the record
// $fileDateTime = $exifData['FileDateTime'];
//
// echo "FileDateTime: " . $fileDateTime . "<br />";
//
// }
// else
{
// load from the DateTime record
if (isset($exifData['DateTime']))
{
// get the components
list($year, $month, $day, $hour, $min, $sec) = sscanf($exifData['DateTime'], "%d:%d:%d %d:%d:%d");
// make the unix timestamp
$mkTime = @mktime($hour, $min, $sec, $month, $day, $year);
// validate the timestamp
if (($mkTime !== false) && ($mkTime != -1))
$fileDateTime = $mkTime;
}
else
{
// if all failed, set the last modification of the file
$fileDateTime = filemtime($this->path);
}
}
// Mime Type //////////////////////////////////////////////////////////////////////////
if (isset($exifData['MimeType']))
$mimeType = $exifData['MimeType'];
}
else
{
// if all failed, set the last modification of the file
$fileDateTime = filemtime($this->path);
$extension = pathinfo($this->path, PATHINFO_EXTENSION);
$extension = strtolower(trim($pathinfo));
if (($pathinfo != "") && isset(Constants::$EXTENSION_2_MIMETYPE[$extension]))
$mimeType = Constants::$EXTENSION_2_MIMETYPE[$extension];
}
// update the class members
$this->dateTime = $fileDateTime;
$this->mimeType = $mimeType;
}
/**
* Getter for the dateTime field
*
* @return Timestamp
*/
public function getDateTime()
{
// return the class member
return $this->dateTime;
}
/**
* Getter for the mime type
*
* @return String The file mime type
*/
public function getMimeType()
{
return $this->mimeType;
}
/**
* Function used to copy the file to a destination directory
*
* @param string $destination
* @return boolean TRUE/FALSE
*/
public function copyTo($destination)
{
// return the result of copy
return copy($this->path, $destination);
}
/**
* Function used to move the file to a destination directory
*
* @param string $destination
* @return boolean TRUE/FALSE
*/
public function moveTo($destination)
{
// return the result of move operation
return @move($this->path, $destionation);
}
}
?>
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