get_post_meta with variable

You can use PHP’s range to iterate through letters.

foreach( range('a', 'j') as $letter ) {
    if( get_post_meta(get_the_ID(), 'trmet_tour_status_' . $letter, true) ){
        echo get_post_meta(get_the_ID(), 'trmet_tour_status_' . $letter, true);
    }
}

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