Merge branch '3.1-stable' into develop

Conflicts resolved:
	system/database/drivers/sqlite/sqlite_driver.php
	system/database/drivers/sqlite/sqlite_forge.php
	system/database/drivers/sqlite/sqlite_result.php
	system/database/drivers/sqlite/sqlite_utility.php
	system/helpers/captcha_helper.php
	system/helpers/email_helper.php
	system/helpers/inflector_helper.php
	system/helpers/smiley_helper.php
	system/language/english/form_validation_lang.php
	system/libraries/Cart.php
	system/libraries/Form_validation.php
	system/libraries/Javascript.php
	system/libraries/Javascript/Jquery.php
	system/libraries/Session/SessionHandlerInterface.php
	tests/codeigniter/helpers/inflector_helper_test.php
	user_guide_src/source/helpers/inflector_helper.rst

1 files changed, 11 insertions, 0 deletions

diff --git a/system/helpers/inflector_helper.php b/system/helpers/inflector_helper.php
index 04f2ac9d2..a36836b00 100644
--- a/system/helpers/inflector_helper.php
+++ b/system/helpers/inflector_helper.php
@@ -275,6 +275,17 @@ if ( ! function_exists('word_is_countable'))
 	}
 }
 
+// --------------------------------------------------------------------
+
+if ( ! function_exists('is_countable'))
+{
+	function is_countable($word)
+	{
+		trigger_error('is_countable() is a native PHP function since version 7.3.0; use word_is_countable() instead', E_USER_WARNING);
+		return word_is_countable($word);
+	}
+}
+
 // ------------------------------------------------------------------------
 
 if ( ! function_exists('ordinal_format'))