compact()
now issues an E_WARNING error.(PHP8.0)
#2776
Merged
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Since PHP 8.0: "A number of notices have been converted into warnings"
Usually, in the PHP manual, even if the error level is raised from E_NOTICE to E_WARNING, a changelog isn't kept within individual function pages.
However, on the compact() page, there's already an entry in the changelog regarding the previous change to 'now issues an E_NOTICE'. Therefore, I believe that adding a note explicitly indicating the recent change in the issued error might prevent confusion.