function convertMetadataVersion( $metadata, $version = 1 ) {
// basically flattens arrays.
- $version = explode( ';', $version, 2 );
- $version = intval( $version[0] );
+ $version = intval( explode( ';', $version, 2 )[0] );
if ( $version < 1 || $version >= 2 ) {
return $metadata;
}