PHP upload manager

Description

File upload manager can be used to upload chunk and non-chunk files.

Uploads can be resumed later(see "resumable-chunk-upload" example in "examples/js-example directory").

Add your files , upload them and close browser, next time you can open browser and resume the uncompleted uploads.

Features

• Multiple file upload: Allows to select multiple files at once and upload them simultaneously.
• Cancelable uploads: Individual file uploads can be canceled to stop the upload progress.
• Resumable uploads: Aborted uploads can be resumed later.
• Chunk uploads: Large files can be uploaded in smaller chunks.
• Customizable and extensible: Provides an interface to define callback methods for various upload events.

Getting started

Installation

composer require khanzadimahdi/uploadmanager

Usage

Available Classes :

• UploadManager\Chunk : contains file's (or chunk) information.
• UploadManager\Upload : stores received files (or chunks).

Example: (simple file upload)

Files are in the "examples/simple-upload" directory

First we create a simple HTML form

<form method="post" action="<?= htmlentities($_SERVER['PHP_SELF']) ?>" enctype="multipart/form-data">
    <label for="media">select file to upload:</label>
    <input id="media" name="media" type="file">
    <input type="submit" value="upload files">
</form>

Then we store file (or files) using the below codes:

if($_SERVER['REQUEST_METHOD']=='POST'){
    $uploadManager=new \UploadManager\Upload('media');
    $chunks=$uploadManager->upload('uploads');
    if(!empty($chunks)){
        foreach($chunks as $chunk){
            echo '<p class="success">'.$chunk->getNameWithExtension().' has been uploaded successfully</p>';
        }
    }
}

if uploaded file has any errors or it cant be uploaded , the "upload" method throws an exception, so it's better to call this method in a try catch block.

try{
    if($_SERVER['REQUEST_METHOD']=='POST'){
        $uploadManager=new \UploadManager\Upload('media');
        $chunks=$uploadManager->upload('uploads');
        if(!empty($chunks)){
            foreach($chunks as $chunk){
                echo '<p class="success">'.$chunk->getNameWithExtension().' has been uploaded successfully</p>';
            }
        }
    }
}catch(\UploadManager\Exceptions\Upload $exception){
    //if file exists: (user selects a file)
    if(!empty($exception->getChunk())){
        foreach($exception->getChunk()->getErrors() as $error){
            echo '<p class="error">'.$error.'</p>';
        }
    }else{
        echo '<p class="error">'.$exception->getMessage().'</p>';
    }
}

Each file (or chunk) related errors can be retrieved by "getErrors" method as an array.

Validations

We can validate files (or chunks) before storing them.

a simple validation example is in "examples/using-validations" directory

Available validations :

1. Extension
2. MimeType
3. Size

Example:

//add validations
$uploadManager->addValidations([
    new \UploadManager\Validations\Size('2M'), //maximum file size is 2M
    new \UploadManager\Validations\Extension(['jpg','jpeg','png','gif']),
]);

as you see, we can use "addValidations" method to add an array of validations.

you can use either available validations or creating a custom validation by implementing "UploadManager\Contracts\ValidationInterface" interface.

Callbacks

Here we have the below callbacks:

1. beforeValidate

2. afterValidate

3. beforeUpload

4. afterUpload

Callbacks can be used to control the flow of uploading mechanism.

example:

Here we remove uploaded file (or chunk) if an error occurred.

Files are in the "examples/simple-callbacks" directory

//add callback : remove uploaded chunks on error
$uploadManager->afterValidate(function($chunk){
    $address=($chunk->getSavePath().$chunk->getNameWithExtension());
    if($chunk->hasError() && file_exists($address)){
        //remove current chunk on error
        @unlink($address);
    }
});

More real examples

see the "examples/js-examples" directory for more real examples.

available examples:

• Dropzone

• JQuery file upload

• Plupload

• Resumable-Chunk-Upload : the best example for resuming uploads in the future! in this example you need to create a database and import "server/medias.sql" in it , then change connection configs in "server/upload.php"

Requirements

requirements

• PHP v. 5.6+
• FileInfo ext : Required for recognizing file's mimeType.

Optional requirements

• Json ext : Used to return json messages can be used in client side.

Contributing

Please read the contribution guidelines before submitting a pull request.

Support

This project is actively maintained, but there is no official support channel.

License

Released under the MIT license.