The Symfony VarDumper component includes an HtmlDumper that dumps
variables in a rich HTML format that allows for expanding and collapsing
individual tree nodes in the dumped variable. This makes it much more
practical to navigate large/deep variables that have been dumped.
DebugBarVarDumper provides a Debug Bar-friendly wrapper around the
VarDumper component. It’s intended as a better alternative to
DataFormatter::formatVar. It provides for:
* Debug Bar-friendly styles for the VarDumper HTML.
* Implements AssetProvider for returning VarDumper static assets
(requires users of JavascriptRenderer to support inline assets).
* Simplifies VarCloner and HtmlDumper function calls for cloning and
dumping variables in a Debug Bar environment. VarDumper was
originally written/targeted to be a replacement for var_dump, so the
default behavior of HtmlDumper echoing static assets and variable
dumps directly to the page output isn’t really appropriate.
Furthermore, we must contend with several different Symfony versions
going back to v2.6.0. This class provides a friendly wrapper.
I have tested this with these Symfony versions:
* v2.6.0
* v2.7.0
* v2.8.0
* v3.0.0
* v3.1.0
* v3.2.0
* v3.3.0
All seem to work fine, with graceful degradation as needed.
Furthermore, the class is ready to take advantage of new features that I
added and are upcoming in Symfony v3.4:
* setMinDepth: https://github.com/symfony/symfony/pull/23515
This feature will be valuable for the upcoming BacktraceCollector.
