![]() Most people have unoptimized photos from their 10+ megapixel cameras which are way larger than these requirements. These pictures will be displayed small and they have limitations e.g., picture size must be 100x100 px and the file size can only be up to 200 KB. Here is one common use case: a web service in which you ask users to upload profile pictures. On-site PHP image optimization may be important for all sorts of web services that allow picture uploading. Read an article on asynchronous JS uploading →Īnother prerequisite for PHP is installing a GD library. In order to do any compression, an image has to be delivered to a server in the first place. In this article, you’ll learn how to create a simple PHP image compressor. Selecting a suitable image format automatically (JPEG, PNG, WEBP).Scaling (creating responsive web pages and optimizing traffic for different screen sizes).Compression (downsizing without noticeable quality loss).Here is the simple, but powerful script for creating thumbnails on the fly. ![]() So, let's suppose you have a form where a user can upload an image, and you have to scale it and save it into your database. Here's a complete solution to READ any image (gif jpg png) from the FILESYSTEM, SCALE it to a max width/height, SAVE the scaled image to a BLOB field keeping the original image type. ![]() hope this will save time to other people! I didn't find any example like this on the Web, so I mixed pieces together. Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation GUI Extensions Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto search
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