[PHP7.4] [D7] Passing parameters to implode() in reverse order is deprecated, use implode($glue, $parts) instead of implode($parts, $glue).

There are multiple places where historical order of parameters is being used when calling implode()

PHP7.4:

Passing parameters to implode() in reverse order is deprecated, use implode($glue, $parts) instead of implode($parts, $glue).

See https://www.php.net/manual/en/migration74.deprecated.php#migration74.dep...