Here is the code...

if ( !function_exists( 'getCrunchifyPostViews' ) ) {
function getCrunchifyPostViews($postID){
    $count_key = 'post_views_count';
    $count = get_post_meta($postID, $count_key, true);
    if($count==''){
        delete_post_meta($postID, $count_key);
        add_post_meta($postID, $count_key, '0');
        return "0 View";
    }
    return $count.' Views';
}
}

if ( !function_exists( 'setCrunchifyPostViews' ) ) {
function setCrunchifyPostViews($postID) {
    $count_key = 'post_views_count';
    $count = get_post_meta($postID, $count_key, true);
    if($count==''){
        $count = 0;
        delete_post_meta($postID, $count_key);
        add_post_meta($postID, $count_key, '0');
    }else{
        $count++;
        update_post_meta($postID, $count_key, $count);
    }
}
}

if ( !function_exists( 'mvp_post_views' ) ) {
function mvp_post_views(){
    $post_id = get_the_ID();
    $count_key = 'post_views_count';
    $n = get_post_meta($post_id, $count_key, true);
    if ($n > 999999999) {
        $n_format = number_format($n / 1000000000, 1) . 'B';
    } else if ($n > 999999) {
        $n_format = number_format($n / 1000000, 1) . 'M';
    } else if ($n > 999) {
            $n_format = number_format($n / 1000, 1) . 'K';
    } else {
        $n_format = $n;
    }

    echo $n_format;
}
}

it works fine using this php code to show views <?php mvp_post_views(); ?>

Thou would like to show views using specified posts ID...

Here is the code...

if ( !function_exists( 'getCrunchifyPostViews' ) ) {
function getCrunchifyPostViews($postID){
    $count_key = 'post_views_count';
    $count = get_post_meta($postID, $count_key, true);
    if($count==''){
        delete_post_meta($postID, $count_key);
        add_post_meta($postID, $count_key, '0');
        return "0 View";
    }
    return $count.' Views';
}
}

if ( !function_exists( 'setCrunchifyPostViews' ) ) {
function setCrunchifyPostViews($postID) {
    $count_key = 'post_views_count';
    $count = get_post_meta($postID, $count_key, true);
    if($count==''){
        $count = 0;
        delete_post_meta($postID, $count_key);
        add_post_meta($postID, $count_key, '0');
    }else{
        $count++;
        update_post_meta($postID, $count_key, $count);
    }
}
}

if ( !function_exists( 'mvp_post_views' ) ) {
function mvp_post_views(){
    $post_id = get_the_ID();
    $count_key = 'post_views_count';
    $n = get_post_meta($post_id, $count_key, true);
    if ($n > 999999999) {
        $n_format = number_format($n / 1000000000, 1) . 'B';
    } else if ($n > 999999) {
        $n_format = number_format($n / 1000000, 1) . 'M';
    } else if ($n > 999) {
            $n_format = number_format($n / 1000, 1) . 'K';
    } else {
        $n_format = $n;
    }

    echo $n_format;
}
}

it works fine using this php code to show views <?php mvp_post_views(); ?>

Thou would like to show views using specified posts ID...

• post-meta
• views

• 1 if ($count=='') should be if (!$count) as get_post_meta returns false not an empty string if the key is not set. otherwise seems okay. – majick Commented May 31, 2019 at 4:08

1 Answer 1

You can pass post id as argument in the views function. Please check following example. An optional argument is passed in the function. If nothing is passed, id is fetched from get_the_ID().

if ( !function_exists( 'mvp_post_views' ) ) {
    function mvp_post_views( $post_id = '' ){
        if ( $post_id ) {
            $post_id = absint( $post_id );
        } else {
            $post_id = get_the_ID();
        }
        $count_key = 'post_views_count';
        $n = get_post_meta($post_id, $count_key, true);
        if ($n > 999999999) {
            $n_format = number_format($n / 1000000000, 1) . 'B';
        } else if ($n > 999999) {
            $n_format = number_format($n / 1000000, 1) . 'M';
        } else if ($n > 999) {
            $n_format = number_format($n / 1000, 1) . 'K';
        } else {
            $n_format = $n;
        }
        echo $n_format;
    }
}