dump
The dump function dumps information about a template variable. This is
mostly useful to debug a template that does not behave as expected by
introspecting its variables:
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{{ dump(user) }}Note
The dump function is not available by default. You must add the
\Twig\Extension\DebugExtension extension explicitly when creating your Twig
environment:
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$twig = new \Twig\Environment($loader, [
'debug' => true,
// ...
]);
$twig->addExtension(new \Twig\Extension\DebugExtension());Even when enabled, the dump function won't display anything if the
debug option on the environment is not enabled (to avoid leaking debug
information on a production server).
In an HTML context, wrap the output with a pre tag to make it easier to
read:
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<pre>
{{ dump(user) }}
</pre>Tip
Using a pre tag is not needed when XDebug is enabled and
html_errors is on; as a bonus, the output is also nicer with
XDebug enabled.
You can debug several variables by passing them as additional arguments:
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{{ dump(user, categories) }}If you don't pass any value, all variables from the current context are dumped:
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{{ dump() }}Note
Internally, Twig uses the PHP var_dump function.
Arguments
context: The context to dump