[wp-trac] [WordPress Trac] #41973: HTTP Error when uploading images on PHP 7.1.7

[WordPress Trac]

#41973: HTTP Error when uploading images on PHP 7.1.7
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 Reporter:  robhindle          |       Owner:  joemcgill
     Type:  defect (bug)       |      Status:  reopened
 Priority:  high               |   Milestone:  Awaiting Review
Component:  Media              |     Version:
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:
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Comment (by cmb42):

 SOLUTION FOUND for my similar issue:

 Create file called .user.ini (if it doesn’t already exist.)
 Add the following lines. The second cured my issue, the first may solve
 others(optional):

 memory_limit = 128M
 max_execution_time = 300

 You can adjust the number as needed.
 Place the file in the root dir for the website (same dir as
 wp_config.php).

 Since this seems so closely tied to plugins, and, at least WordFence adds
 the .user.ini file to the env., maybe this is a big clue to the underlying
 cause?  I added `define( 'WP_MEMORY_LIMIT', '256M' );` to wp-config.php,
 but it did nothing for this problem. Adding/changing .user.ini did fix it.

 Maybe this will help others.

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Ticket URL: <https://core.trac.wordpress.org/ticket/41973#comment:30>
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