[wp-trac] [WordPress Trac] #57580: Avoid errors from null parameters in add_submenu_page()

[WordPress Trac]

#57580: Avoid errors from null parameters in add_submenu_page()
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 Reporter:  ipajen                        |       Owner:  (none)
     Type:  enhancement                   |      Status:  reopened
 Priority:  normal                        |   Milestone:  Future Release
Component:  General                       |     Version:
 Severity:  normal                        |  Resolution:
 Keywords:  PHP81 has-patch dev-feedback  |     Focuses:  administration
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Comment (by siliconforks):

 Wouldn't it be better to make `add_submenu_page()` work without warnings
 using `null` as the first parameter, instead of failing?

 As it stands now, isn't this PR a breaking change?  Because right now this
 trick (of passing `null`) actually does in fact work - it just gives a
 warning.  If this PR is applied it will break any plugin that is doing
 this.

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Ticket URL: <https://core.trac.wordpress.org/ticket/57580#comment:29>
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