[wp-trac] [WordPress Trac] #19898: Create an is_login_screen() function similar to is_admin()

[WordPress Trac]

#19898: Create an is_login_screen() function similar to is_admin()
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 Reporter:  dcowgill                |       Owner:  SergeyBiryukov
     Type:  enhancement             |      Status:  closed
 Priority:  normal                  |   Milestone:  6.1
Component:  Login and Registration  |     Version:  3.3
 Severity:  normal                  |  Resolution:  fixed
 Keywords:  2nd-opinion has-patch   |     Focuses:
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Changes (by SergeyBiryukov):

 * status:  reviewing => closed
 * resolution:   => fixed


Comment:

 In [changeset:"53884" 53884]:
 {{{
 #!CommitTicketReference repository="" revision="53884"
 Login and Registration: Introduce `is_login_screen()` function.

 This should help determine whether the current request is for the login
 screen.

 While it does not save a lot of lines of code, including this function in
 core aims to save developers some time that would otherwise be spent
 investigating the most reliable way to solve this problem.

 Implementation details:
 * By checking `wp_login_url()`, the function accounts for custom login
 locations set via the `login_url` filter.
 * By checking `$_SERVER['SCRIPT_NAME']` directly, instead of `did_action(
 'login_form_login' )` or `$pagenow` global, the function can work as early
 as possible, for example in a must-use plugin.

 Follow-up to [2481], [6412], [12393], [12732], [15558], [15481], [15746].

 Props dcowgill, scribu, donmhico, iandunn, wonderboymusic, nacin,
 robmiller, kitchin, chriscct7, tazotodua, davidbaumwald, SergeyBiryukov.
 Fixes #19898.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/19898#comment:34>
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