Organize photos found in same folder as script, into year/month/day folders

organize_photos.php

#!/usr/bin/env php
<?php 

date_default_timezone_set('America/Vancouver');

define('DS', DIRECTORY_SEPARATOR);
define('ROOT', getcwd() . DS);


/**
 * ------------------------------------------------------------------------
 * Configuration options
 * ------------------------------------------------------------------------
 */
$photoExts = [
    "jpg",
    "jpeg",
    "png",
    "tiff",
    "dng",

    # Sony
    "arw",
    "sr2",
    "srf",

    # Canon
    "crw",
    "cr2",
    "cr3",

    # Nikon
    "nef",
    "nrw",

    # Fujifilm
    "3fr",
    "raf",

    # Panasonic
    "rw2",

    # Olympus
    "orf",

    # Pentax
    "pef",
];

/**
 * ------------------------------------------------------------------------
 * Functions
 * ------------------------------------------------------------------------
 */
function getPhotoDateTakenOrFileDate($filePath) {
    if (!file_exists($filePath)) {
        return false;
    }

    $foundDate = false;

    $exifData = @exif_read_data($filePath);
    if ($exifData !== false && isset($exifData['DateTimeOriginal'])) {
        try {
            $dateTimeOriginal = $exifData['DateTimeOriginal'];
            $date = DateTime::createFromFormat('Y:m:d H:i:s', $dateTimeOriginal);
            if ($date !== false) {
            	$foundDate = $date->format('Y-m-d');
            }
        } catch (Exception $e) {
            return false;
        }
    }

    $fileModificationTime = filemtime($filePath);
    if ($fileModificationTime !== false) {
    	$foundDate = date("Y-m-d", $fileModificationTime);
    }

    if (! $foundDate) {
    	return false;
    } else {
		$dateTaken = DateTime::createFromFormat('Y-m-d', $foundDate);
	    if (!$dateTaken) {
	        throw new InvalidArgumentException("Invalid date format. Expected format is 'Y-m-d'.");
	    }
		return $dateTaken;
    }
}

function move_file($sourceFileInfo, $destDir) {
	if (! is_dir($destDir)) {
		mkdir($destDir, 0777, true);
	}

	if (! rename($sourceFileInfo->getPathname(), $destDir . DS . $sourceFileInfo->getBasename())) {
		printf("Could not move photo: \"%s\"\n", $sourceFileInfo->getPathname());
	} else {
		echo "Moved photo! " . $destDir . DS . $sourceFileInfo->getBasename();
	}
}


/**
 * ------------------------------------------------------------------------
 * Iterate images
 * ------------------------------------------------------------------------
 */
$dir = new DirectoryIterator(ROOT);

foreach ($dir as $fileInfo) {
    if ( ! $fileInfo->isDot()
        && in_array(strtolower($fileInfo->getExtension()), $photoExts)
        && substr($fileInfo->getBasename(), '0', 1) !== '.') {
    	echo "Found photo: " . $fileInfo->getPathname() . "\n";

		$dateTaken = getPhotoDateTakenOrFileDate($fileInfo->getPathname());
		if (! $dateTaken) {
			echo "No date found." . "\n";
		} else {
			$newDir = $fileInfo->getPath() 
				. DS . $dateTaken->format('Y') 
				. DS . $dateTaken->format('m') 
				. DS . $dateTaken->format('d');
			move_file($fileInfo, $newDir);
		}
    }
}