[wp-trac] [WordPress Trac] #56017: Check the required PHP extensions during WordPress installation and updates

[WordPress Trac]

#56017: Check the required PHP extensions during WordPress installation and updates
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 Reporter:  SergeyBiryukov   |      Owner:  (none)
     Type:  task (blessed)   |     Status:  new
 Priority:  normal           |  Milestone:  6.1
Component:  Upgrade/Install  |    Version:
 Severity:  normal           |   Keywords:
  Focuses:                   |
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 Background: #55603

 Currently, marking a PHP extension as required in Site Health displays a
 warning on existing sites if the extension is unavailable, but it does not
 block the WP installation for new sites, nor the updates to the new
 version for older sites.

 To avoid fatal errors, WordPress core should check for the required PHP
 extensions both during installation and updates, similar to how we check
 for the required PHP and MySQL versions.

 As also noted by @jrf in comment:2:ticket:55603:
 > Might also be a good time to improve the code re-usability in that
 regards (have one master list of requirements and recommendations, which
 both the requirements checker on installation/load + the Site Health
 component draw from).

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Ticket URL: <https://core.trac.wordpress.org/ticket/56017>
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