Post pagination links ordered by meta value

Is there a way to order the nex-previous post links, or any other pagination function to get the links ordered by meta value, like I have done in the posts listing page shown below?

$  events = get_posts(array(     'posts_per_page' => -1,     'post_type' => 'post',     'meta_key'  => 'date_time',     'orderby'   => 'meta_value',     'order'     => 'ASC',     'suppress_filters' => false )); 

The main goal is tho have the next, – previous event buttons in chronological order in the single post page. (not the post date, but the event date that is stored in custom fields)

Information exposure through query strings in url of a POST request [duplicate]

I can’t seem to find any information online for when there is information exposure through query strings in URL of a POST request.

I understand it is an issue for when it’s sent in HTTP GET. Wondering if it would still be an issue for when it’s sent in POST?


POST /api/view?username=USER 

Just adding basic token by POST parameter for securing the API. It is safe?

Let’s say I have an address for an API like this: 

If accessed, a JSON will appear like this:

[   {     "id":"1",     "name":"John"   },   {     "id":"2",     "name":"Smith"   } ] 

The result defaults will be displaying the entire data if a post has no parameters. If you use post "ID" and the ID parameter value is one of the existing data in the API, it will only display objects from the data selected based on the ID. The API can be accessed by anyone. API needs to be accessed using token parameters to secure the data.

Let’s say I add a token parameter to be able to access data like this:

yourtoken="yourtoken"  if (post_param[token]==yourtoken) {   // Displaying JSON } 

so if you want to open the API, you need to add a token parameter.

Is simple security like this worth using? what vulnerabilities will arise if I use this? is there a better way than this?

Writing a plugin to track user purchase and post back that using API? [closed]

I am writing a plugin to track user purchase and post back that using API.

First the user visit a third party listing site and logs in. Then he clicks the listing and visits a wordpress store with this plugin.
I need to store that user info for 30 days. In that window period if he makes purchase i will pay commission to the third party listing site.

Can you suggest any code examples or free and paid plugins to look at.

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Building WordPress Plugin Using FPDF – How do you get post content from currently viewed post?

I am using FPDF to build a plugin in wordpress that will add a button on each post(documentation) that gives the user the ability to export it as a styled pdf from the post without having to maintain working files and uploading attachements for hundreds of files.

I used this as a guide, and it currently works in one respect, however this current iteration exports a PDF of ALL posts in the documentation post type. How do I instead pull the post content from the currently viewed post only?

I have been banging my head for a week, so hopefully someone can point me in the right direction. Let me know if I can clarify anything additional.


<?php  if ( ! defined( 'ABSPATH' ) ) { exit; }  include( 'atomicsmash-pdf-helper-functions.php');  $  pdf = new PDF_HTML();  if( isset($  _POST['generate_posts_pdf'])){ output_pdf(); }  function output_pdf() { $  args = array(     'post_type'   => 'manual_documentation'   );  $  posts = get_posts( $  args );  if( ! empty( $  posts ) ) {     global $  pdf;     $  title_line_height = 10;     $  content_line_height = 8;      foreach( $  posts as $  post ) {          $  pdf->AddFont( 'Lato', '', 'Lato-Regular.php' );         $  pdf->AddFont( 'Lato', 'B', 'Lato-Bold.php' );         $  pdf->AddFont( 'Lato', 'I', 'Lato-Italic.php' );         $  pdf->SetMargins(12.7, 12.7);         $  pdf->SetDrawColor(36,161,89);          $  pdf->AddPage();         $  pdf->SetFont( 'Lato', 'B', 24 );         $  pdf->SetTextColor(4,23,51);         $  pdf->Write($  title_line_height, $  post->post_title);          $  pdf->SetLineWidth(1);         $  pdf->Line(14, 27, 40, 27);          // Add a line break         $  pdf->Ln(14);          // Image         $  page_width = $  pdf->GetPageWidth() - 20;         $  max_image_width = $  page_width;          $  image = get_the_post_thumbnail_url( $  post->ID );         if( ! empty( $  image ) ) {             $  pdf->Image( $  image, null, null, 100 );         }                  // Post Content         $  pdf->Ln(10);         $  pdf->SetFont( 'Lato', '', 10 );         $  pdf->SetTextColor(38,59,71);         $  pdf->WriteHTML($  post->post_content);     } }  $  pdf->Output('D','atomic_smash_fpdf_tutorial.pdf'); exit; }  function as_fpdf_create_admin_page() {  ?>  <div class="wrap"> <form method="post" id="as-fdpf-form">     <button class="custom-botton" type="submit" name="generate_posts_pdf" value="generate">Download PDF</button> </form> </div>  <?php }  function register_shortcodes(){ add_shortcode('fpdf-doc', 'as_fpdf_create_admin_page'); }  add_action( 'init', 'register_shortcodes');