Composer/PSR – How to autoload functions?
You can autoload specific files by editing your composer.json file like this: “autoload”: { “files”: [“src/helpers.php”] } (thanks Kint)
psr-0
What Are the Differences Between PSR-0 and PSR-4?
They are very similar so it is not surprising that it’s a bit confusing. The summary is that PSR-0 had some backwards compatibility features for PEAR-style classnames that PSR-4 dropped, as such it only supports namespaced code. On top of that PSR-4 does not force you to have the whole namespace as a directory structure, … Read more
Why use a PSR-0 or PSR-4 autoload in composer if classmap is actually faster?
The problem is that the classmap is NOT actually faster in every case! The speed of the classmap comes from not having to check the filesystem if a file exists before doing the always necessary work of loading it, parsing it (opcode caches will help here) and then executing it. But the downside of the … Read more