8000 [Debug] Create a main guide for Debugging by wouterj · Pull Request #7071 · symfony/symfony-docs · GitHub
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[Debug] Create a main guide for Debugging #7071

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5dc304c
Bootstrap main debugging guide
wouterj Oct 20, 2016
4c065fd
Added the VarDumper to the debug/debugging page
hiddewie Oct 1, 2016
a92b746
Rewrote the VarDump section a bit
wouterj Oct 20, 2016
c015760
Added a section about interactive debugging tools
wouterj Oct 20, 2016
bb389ee
Moved the debug commands below again
wouterj Oct 20, 2016
779983d
Fixes after great reviews
wouterj Mar 19, 2017
758a9f7
Removed doc on load cache class
wouterj Oct 7, 2017
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Added the VarDumper to the debug/debugging page 
Conflicts:
	debug/debugging.rst
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@hiddewie @wouterj
hiddewie authored and wouterj committed Oct 7, 2017
commit 4c065fde68f44c10f695dfc2201114a3e1ebd4b3
25 changes: 25 additions & 0 deletions debug.rst
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Expand Up @@ -88,3 +88,28 @@ that can help you visualize and find the information.

When in doubt how to use a console command, open the help section by
appending the ``--help`` option.
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(-h)


Using the VarDumper
-------------------

To ease the debugging of a variable in your application, you can use the
``VarDumper`` component to dump the content of a variable. The component
provides an alternative to the PHP ``var_dump`` function, in the form of
``dump``.

It is as easy as the code below::

// Create a variable with a value...
$myVar = ...;

// ... and dump it
dump($myVar);

.. tip::

The dumper is not limited to scalar values. Arrays and objects can also be
visualized using the ``VarDumper``.

If the dumper is used on a command line, the result is a formatted string.
Otherwise, the result is a piece of HTML, which can be expanded to show nested
structures in the dumped value.
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