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• How add custom field with WP-REST on another page?

  How to realize following functionality by means of WP-Rest. It is necessary on other page (control of a plug-in, I write the plug-in), to remove select with custom post type, and after the choice, are updated below the field, in dependence of a post. If it is necessary, I can pay a small money for the help.

  My code add custom field in WP-REST, but it doesn't work.

  add_action( 'rest_api_init', 'create_api_posts_meta_field' );
  function create_api_posts_meta_field() {
  
      // register_rest_field ( 'name-of-post-type', 'name-of-field-to-return', array-of-callbacks-and-schema() )
      register_rest_field( 'parsing', 'parsing_night_key', array(
             'get_callback'    => 'get_post_meta_for_api',
             'schema'          => null,
          )
      );
  }
  
  function get_post_meta_for_api( $object ) {
      //get the id of the post object array
      $post_id = $object['id'];
  
      //return the post meta
      return get_post_meta( $post_id );
  }
  
• wordpress currency field frontend NumberFormatter php no plugin

  please help as maybe I do not know how to search for a solution, the way I search does not yield a result.

  1/ having a workpress website, on the frontend, I need fields where users can add currency values. that is: with precision 2 (like 1,55). With those values calculations are done, and a result (also with precision of 2) is shown.

  2/ i want to control the format, as i do not know which currency people will chose (they will be able to select it). so, I want to switch myself (not the locale of the installed wordpress or the locale of the installed OS) how the currency is shown - US or EU (currency symbol is not important, I can add a string myself somewhere)

  3/ I do not want to use a plugin, I found a few but they have limitations and, it seems, with the format to change there is nothing available(?)

  so I found the php intl, with the function/method NumberFormatter, which seems to be exactly the function/method that I want to use.

  I tried with CMB2, however, in the number field I did not found how to change the locale myself, for that one field.

  Please kindly tell me how this is done (usually I program in Java so, I have issues with the limitations of Wordpress also or say, i am not aware of them much) .. please kindly let me know how such is done, and where I could continue researching. or, if it's advisable to skip wordpress entirely if that is maybe not possible, please kindly let me know. thank you!
• Wordpress - wp-config.php encoding - erratic behaviour

  I'm facing a strange problem with my wordpress multisite installation. I have a couple of domains on the same server and depending on which domain I use to access the same file, I get different results.

  When I need to access Wordpress Core from pages outside the usual structure, I use the following code:

  require_once("../../wp-config.php");
  $wp->init(); $wp->parse_request(); $wp->query_posts();
  $wp->register_globals(); $wp->send_headers();
  echo "test hello";
  

  The execution of this code works fine with all domains but when using some specific domains, 4 blank lines are added to the top of my page.

  So on domain name 1, the source code looks like this:

  1. test hello
  

  While on another domain, the source code looks like this:

  1.
  2.
  3.
  4.
  5. test hello
  

  This is exactly the same code, exactly the same file but called from a different domain name.

  I have checked the encoding of wp-config.php and it is in UTF8 without BOM while other WP core files are in ASCII. I have tried to convert all other WP Core files in UTF8 without BOM but then I get the 4 lines on all my domains. If I convert wp-config back to ASCII, I still get 4 lines on some domains.

  All domains are using the same database, the only difference is the theme used. They are all using different themes but I don't know how this would be related.

  I also see the 4 empty lines in Wordpress admin on some domains but not on others.

  I'm puzzled :(

  Do you have any idea of what it going on? It doesn't prevent pages from being executed but it creates white space on top of every concerned sites (3 out of 15). I have tried reinstalled the current WP version but it didn't solve the issue.

  Do you have any idea?

  Thanks

  Laurent