create a function and modify a post on the wordpress site based on the post id-CodePudding

Anyone know which function I can use in the loop to separate and edit posts by ids?

default values:

single.php file

$dlm128=get_post_meta($post_id,'music128',true);  

$dlm320=get_post_meta($post_id,'music320',true);

If specific conditions are met( $constantvalue= "anothervalue" ), I want to update the post; else, I want to leave it the same.

I don't want to alter MySQL; instead, I'd like to change the single.php file in the post loop.

thanks for your support.

I looked on the internet but couldn't discover a solution.(a function)

CodePudding user response：

If you know the conditions that you're looking for, you should be able to write an IF statement to match.

if ($constantvalue == "anothervalue") {
  // make local changes 
}

Can you give an example of what you're trying to do? It's hard to understand the request with such little information.

CodePudding user response：

Try like this hope its working for you.

while(have_posts()):

    $ID = get_the_ID();

    $data1 = get_post_meta($ID,'meta_key',true);
    $data2 = get_post_meta($ID,'meta_key',true);

    if($data1 == $data2) {
        update_post_meta($ID,'meta_key','meta_value');
    }

endwhile;