Change the return type of `_get_cron_array()` to an empty array if the `cron` option is either missing or of an
unexpected type.
This change ensures the return value for no registered events is consistently an empty array. Previously the return
value could be either an empty array or `false`.
Props thakkarhardik, jrf, costdev.
Fixes#53940.
git-svn-id: https://develop.svn.wordpress.org/trunk@53791 602fd350-edb4-49c9-b593-d223f7449a82
Previously committed in [53492], appears to be accidentally reverted in [53564].
Follow-up to [51619], [51695], [53492], [53563].
See #55652.
git-svn-id: https://develop.svn.wordpress.org/trunk@53573 602fd350-edb4-49c9-b593-d223f7449a82
The private `_set_cron_array()` function expects a cron array as the first parameter, but will often be passed the - potentially updated - output of a call to `_get_cron_array()`.
When the `_get_cron_array()` function returns `false`, a "Deprecated: Automatic conversion of false to array is deprecated" warning will be thrown on PHP 8.1.
The input validation resolves the deprecation warning by setting the cron value to an empty array when not given an `array` data type.
Adds a full set of `_set_cron_array()` tests.
Follow-up to [4189], [50152].
Props jrf, hellofromTonya, peterwilsoncc.
See #53635.
git-svn-id: https://develop.svn.wordpress.org/trunk@51695 602fd350-edb4-49c9-b593-d223f7449a82
Peter Wilson