[wp-trac] [WordPress Trac] #29489: wp_check_php_mysql_versions() is broken in PHP 4

[WordPress Trac]

#29489: wp_check_php_mysql_versions() is broken in PHP 4
-----------------------------+------------------------------
 Reporter:  SergeyBiryukov   |       Owner:
     Type:  defect (bug)     |      Status:  new
 Priority:  normal           |   Milestone:  Awaiting Review
Component:  Upgrade/Install  |     Version:  4.0
 Severity:  normal           |  Resolution:
 Keywords:                   |     Focuses:
-----------------------------+------------------------------

Comment (by nacin):

 I'm wondering how much I care about this.

 if wp-admin/install.php otherwise parses, could we do a stupid simple
 check before any requires occur, and bail? I mean something ridiculous
 like:
 {{{
 if ( version_compare( phpversion(), 5, '<' ) ) {
     header( 'Content-type: text/html; charset=utf8' );
     die( 'Your server is running PHP version 4, which is not compatible
 with WordPress. <a
 href="https://wordpress.org/about/requirements/">https://wordpress.org/about/requirements/</a>'
 );
 }
 }}}

 I don't care about any other path, except the readme entry point, which is
 wp-admin/install.php.

 If wp-admin/install.php isn't otherwise parseable, then I really just
 don't care. If it is, then maybe we can set up some kind of CI on this to
 ensure it always remains passable.

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Ticket URL: <https://core.trac.wordpress.org/ticket/29489#comment:4>
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