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Task
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Resolution: Unresolved
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Minor
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None
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5.0
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MOODLE_500_STABLE
https://www.php.net/manual/en/session.configuration.php#ini.session.serialize-handler
php_serialize uses plain serialize/unserialize function internally and does not have limitations that php and php_binary have. Older serialize handlers cannot store numeric index nor string index contains special characters (| and !) in $_SESSION. Use php_serialize to avoid numeric index or special character errors at script shutdown.