The VarDumper component provides mechanisms for walking through any arbitrary PHP variable. It provides a better dump() function that you can use instead of var_dump().
Dump the contents of a database
A function to dump anything to the log
The most featured front matter (yaml, json, neon, toml) parser and dumper for PHP.
Externalize Symfony VarDumper dumps
Small tool to dump a summary of a class's API