Upgrading from 3.1.9 to 3.1.10
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Before performing an update you should take your site offline by
replacing the index.php file with a static one.


Step 1: Update your CodeIgniter files
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Replace all files and directories in your *system/* directory.

Note:

  If you have any custom developed files in these directories, please
  make copies of them first.


Step 2: Check for calls to is_countable()
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PHP 7.3 introduces a native is_countable() function, which creates a
name collision with the "is_countable()" function we’ve had in our
Inflector Helpers.

If you’ve been using the helper function in question, you should now
rename the calls to it to "word_is_countable()".
