Commit6349bd3

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[Serializer] Add an option to skip null values

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Original file line number	Diff line number	Diff line change
@@ -754,6 +754,25 @@ This encoder requires the :doc:`Yaml Component </components/yaml>` and
`754`	`754`	`transforms from and to Yaml.`
`755`	`755`
`756`	`756`
	`757`	+Skipping ``null`` Values
	`758`	`+------------------------`
	`759`	`+`
	`760`	+By default, the Serializer will preserve properties containing a ``null`` value.
	`761`	+You can change this behavior by setting the ``skip_null_values`` context option
	`762`	+to ``true``::
	`763`	`+`
	`764`	`+ $dummy = new class {`
	`765`	`+ public $foo;`
	`766`	`+ public $bar = 'notNull';`
	`767`	`+ };`
	`768`	`+`
	`769`	`+ $normalizer = new ObjectNormalizer();`
	`770`	`+ $result = $normalizer->normalize($dummy, 'json', ['skip_null_values' => true]);`
	`771`	`+ // ['bar' => 'notNull']`
	`772`	`+`
	`773`	`+..versionadded::4.2`
	`774`	+ The ``skip_null_values`` option was introduced in Symfony 4.2.
	`775`	`+`
`757`	`776`	`.. _component-serializer-handling-circular-references:`
`758`	`777`
`759`	`778`	`Handling Circular References`

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