hellofromTonya e838c96df4 Code Modernization: Fix "passing null to non-nullable" deprecation notice in WP_Comment_Query::get_comment_ids(). ...

The `WP_Comment_Query::get_comment_ids()` method is supposed to handle `null` as a search query, but was throwing a `strlen(): Passing null to parameter #1 ($string) of type string is deprecated` notice on PHP 8.1.

Discovered via and already covered via the pre-existing `Tests_Comment_Query::test_search_null_should_be_ignored()` test method.

Follow-up to [36345], [48275].

Props jrf, hellofromTonya.
See #53635.
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git-svn-id: http://core.svn.wordpress.org/trunk@51413 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2021-09-13 18:54:59 +00:00

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