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remoharsono/simple_file_upload.php

Last active December 4, 2019 09:27
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PHP :: Simple File Upload
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simple_file_upload.php
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>.</title>
</head>
<body>
<?php
// namespace Remo\Upload;
/*
sample output ON SUCCESS:
Array
(
[0] => Array
(
[filename] => uploaded_document.pdf
[new_filename] => 20191204155419_5de7743b01200_FUN9AudW.pdf
[size] => 452,373
[status] => OK
)
)
*/
class Upload {
var $version = '0.1.0';
var $uploadFolder;
var $uploadFile;
var $arrResults;
var $allowedFileExtensions;
var $allowedMimeTypes;
var $maxFileSize; // in MegaBytes
function __construct($uploadFile, $config = null) {
$this->uploadFile = $uploadFile;
if ($config == null) {
$this->uploadFolder = 'uploads/';
$this->allowedFileExtensions = $this->getDefaultAllowedFileExtensions();
$this->allowedMimeTypes = $this->getDefaultAllowedMimeTypes();
$this->maxFileSize = 25;
} else {
$this->uploadFolder = $config['uploadFolder'];
$this->allowedFileExtensions = $config['allowedFileExtensions'];
$this->allowedMimeTypes = $config['allowedMimeTypes'];
$this->maxFileSize = $config['maxFileSize'];
}
}
function getDefaultAllowedFileExtensions() {
return array(
'pdf',
'jpg',
'jpeg',
'png',
'gif',
'mp3',
'mpeg',
'odp',
'ods',
'odt',
'tif',
'tiff',
'font/ttf',
'vsd',
'webm',
'webp',
'avi',
'mp4',
'ppt',
'pptx',
'doc',
'docx',
'xls',
'xlsx',
'zip',
'txt'
);
}
function getDefaultAllowedMimeTypes() {
return array(
'application/pdf',
'image/jpeg',
'image/png',
'image/gif',
'audio/mpeg',
'application/vnd.oasis.opendocument.presentation',
'application/vnd.oasis.opendocument.spreadsheet',
'application/vnd.oasis.opendocument.text',
'image/tiff',
'font/ttf',
'application/vnd.visio',
'video/webm',
'image/webp',
'video/avi',
'video/mp4',
'application/vnd.ms-powerpoint',
'application/vnd.openxmlformats-officedocument.presentationml.presentation',
'application/msword',
'application/msword',
'application/vnd.ms-excel',
'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
'application/zip',
'text/plain'
);
}
function generateRandomString($length = 10) {
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$charactersLength = strlen($characters);
$randomString = '';
for ($i = 0; $i < $length; $i++) {
$randomString .= $characters[rand(0, $charactersLength - 1)];
}
return $randomString;
}
function random_str($length = 64, $keyspace = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ') {
if ($length < 1) {
throw new \RangeException("Length must be a positive integer");
}
$pieces = array();
$max = mb_strlen($keyspace, '8bit') - 1;
for ($i = 0; $i < $length; ++$i) {
$pieces []= $keyspace[random_int(0, $max)];
}
return implode('', $pieces);
}
function getNewFilename($oldFilename) {
$uniqueDateTime = date("YmdHis") . '_' . uniqid();
$filename = $uniqueDateTime . '_' . $this->random_str(8) . '.' . $this->getExtension($oldFilename);
return $filename;
}
function getExtension($filename) {
if (strpos($filename, ".") !== false) {
$pos = strrpos($filename, ".");
return substr($filename, $pos+1, strlen($filename));
} else {
return '';
}
}
function getMimeType($filename) {
if (function_exists('mime_content_type')) {
return mime_content_type($filename);
} elseif (function_exists('finfo_open')) {
$finfo = finfo_open(FILEINFO_MIME_TYPE);
$mimeType = finfo_file($finfo, $filename);
finfo_close($finfo);
return $mimeType;
} else {
return '';
}
}
function isAllowedExtension($filename) {
if (in_array($this->getExtension($filename), $this->allowedFileExtensions)) {
return true;
} else {
return false;
}
}
function isAllowedMimeType($filename) {
if (in_array($this->getMimeType($filename), $this->allowedMimeTypes)) {
return true;
} else {
return false;
}
}
function process() {
$maxFileSize = $this->maxFileSize * 1000000;
$numFiles= count($this->uploadFile['name']);
$arrResults = array();
for ( $counter=0 ; $counter < $numFiles ; $counter++ ) {
$tmp_file = $this->uploadFile['tmp_name'][$counter];
if ($tmp_file != ""){
$filename = $this->uploadFile['name'][$counter];
$filesize = $this->uploadFile['size'][$counter];
// allowed extension ?
if ($this->isAllowedExtension($filename)) {
// size below max size ?
if ($filesize < $maxFileSize) {
if ($this->isAllowedMimeType($tmp_file)) {
do {
$newFilename = $this->getNewFilename($filename);
$newFilePath = $this->uploadFolder . '/' . $newFilename;
} while (file_exists($newFilePath));
if (@move_uploaded_file($tmp_file, $newFilePath)) {
$arrResults[$counter]['filename'] = $filename;
$arrResults[$counter]['new_filename'] = $newFilename;
$arrResults[$counter]['size'] = number_format($filesize);
$arrResults[$counter]['status'] = 'OK';
} else {
$arrResults[$counter]['filename'] = $filename;
$arrResults[$counter]['size'] = number_format($filesize);
$arrResults[$counter]['status'] = 'ERROR';
$arrResults[$counter]['decription'] = 'FAILED_MOVING_FILE';
}
} else {
$arrResults[$counter]['filename'] = $filename;
$arrResults[$counter]['size'] = number_format($filesize);
$arrResults[$counter]['status'] = 'ERROR';
$arrResults[$counter]['decription'] = 'DISALLOWED_MIME_TYPE';
}
} else {
$arrResults[$counter]['filename'] = $filename;
$arrResults[$counter]['size'] = number_format($filesize);
$arrResults[$counter]['status'] = 'ERROR';
$arrResults[$counter]['decription'] = 'EXCEEDS_MAX_FILE_SIZE';
}
} else {
$arrResults[$counter]['filename'] = $filename;
$arrResults[$counter]['size'] = number_format($filesize);
$arrResults[$counter]['status'] = 'ERROR';
$arrResults[$counter]['decription'] = 'DISALLOWED_FILE_EXTENSION';
}
}
}
$this->arrResults = $arrResults;
}
}
if (isset($_POST['submit'])) {
$upload_folder = "uploads";
$max_file_size = 50; // in megabytes
$allowed_file_extensions = array(
'pdf',
'jpg',
'jpeg',
'png',
'gif',
'mp3',
'mpeg',
'odp',
'ods',
'odt',
'tif',
'tiff',
'font/ttf',
'vsd',
'webm',
'webp',
'avi',
'mp4',
'ppt',
'pptx',
'doc',
'docx',
'xls',
'xlsx',
'zip',
'txt'
);
$allowed_mime_types = array(
'application/pdf',
'image/jpeg',
'image/png',
'image/gif',
'audio/mpeg',
'application/vnd.oasis.opendocument.presentation',
'application/vnd.oasis.opendocument.spreadsheet',
'application/vnd.oasis.opendocument.text',
'image/tiff',
'font/ttf',
'application/vnd.visio',
'video/webm',
'image/webp',
'video/avi',
'video/mp4',
'application/vnd.ms-powerpoint',
'application/vnd.openxmlformats-officedocument.presentationml.presentation',
'application/msword',
'application/msword',
'application/vnd.ms-excel',
'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
'application/zip',
'text/plain'
);
$config = array(
'uploadFolder' => $upload_folder,
'maxFileSize' => $max_file_size,
'allowedFileExtensions' => $allowed_file_extensions,
'allowedMimeTypes' => $allowed_mime_types
);
$upload = new Upload($_FILES['myfile'], $config);
// atau
// $upload->upload_folder = 'uploads/';
// $upload->max_file_size = 2;
// $upload->allowed_file_extensions = $allowed_file_extensions;
// $upload->allowed_mime_types = $allowed_mime_types;
$upload->process();
echo json_encode($upload->arrResults);
} else {
?>
<form method="post" enctype="multipart/form-data" action="upload2.php">
<input type="file" name="myfile[]" id="myfile" multiple="">
<input name="submit" type="submit" value="Upload">
</form>
<?php
}
?>
</body>
</html>
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