function getSharedCacheKey( /*...*/ ) {
if ( $this->hasSharedCache() ) {
$args = func_get_args();
- array_unshift( $args, $this->dbName, $this->tablePrefix );
- return call_user_func_array( 'wfForeignMemcKey', $args );
+ return wfForeignMemcKey( $this->dbName, $this->tablePrefix, ...$args );
} else {
return false;
}