All about Uploading Files in Symfony

Need to upload some files in Symfony? Excellent! You've come to the right place!

These days, uploading files can be simple... or incredibly complex - with cloud storage, private files, thumbnailing, validation and so much more. So let's tackle... all of it!

• Understanding basic file uploading
• File uploads in a Symfony form
• File (and Image) validation
• Naming files (unique vs keeping the original name... or both?)
• Handling/moving uploaded files in an organized way
• Rendering links to the uploaded files
• Thumbnailing with LiipImagineBundle
• "Uploading" files in your data fixtures
• Flysystem: using a filesystem abstraction
• Uploading files but keeping them private
• Adding a download endpoint for "private" files
• Fancy AJAX uploading with Dropzone
• Storing files in the cloud (S3)

So get into the (Drop)zone and let us upload some serious knowledge to you in this... multipart(.../form-data) tutorial. Ok... better jokes are inside... I promise!

• Setting up with the Symfony Local Web Server
• Uploads, multipart/form-data & UploadedFile
• Where & How to Store the File
• Unique (but not Insane) Filenames
• File Upload Field in a Form
• Centralizing Upload Logic
• File Validation
• Upload Field Styling & Bootstrap
• URL to Public Assets
• The asset() Function & assets.context
• Thumbnailing with LiipImagineBundle
• Image Preview on the Form
• File Uploads & Data Fixtures
• Flysystem: Filesystem Abstraction
• Using the Filesystem
• Flysystem: Streaming & Defensive Coding
• Flysystem