Same as include() method except that file will not be executed if it as previously been included
WireFileTools::include() method for details, arguments and options.
Available since version 3.0.96.
// basic usage $bool = $files->includeOnce(string $filename); // usage with all arguments $bool = $files->includeOnce(string $filename, array $vars = , array $options = );
API reference based on ProcessWire core version 3.0.200