如何在单个 PHP 文件中包含 WordPress Advance Custom Field 插件功能？

Question

I'm trying to get value from WordPress post custom field (with WordPress Advance Custom Field plugin) and echoing this the custom field value on a single (standalone) PHP file on WordPress root directory with this PHP code

<?php
    require_once("wp-load.php");

    $value = get_field( "content" );

    echo $value;

?>

and it doesn't work, what is the correct method to include the WordPress functions?

Thanks for the help.

Answer 1

Use the_field() function

<?php
$parse_uri = explode( 'wp-content', $_SERVER['SCRIPT_FILENAME'] );
require_once( $parse_uri[0] . 'wp-load.php' );

$page_id=123;
the_field('content',$page_id);

 ?>

Answer 2

Remove require_once("wp-load.php"); from your code and add following code for Retrieving a field as a variable.

<?php

$variable = get_field('field_name');

// do something with $variable

echo $variable;

?>

Hope this will help. Please let me know if any issue.

Answer 3

Custom field is related with specific posts, pages, custom post type so when you want to retrieve filed value then you must pass ID , at root file by default it will not have any POST ID.

So your code will work in this way

<?php
      require_once("wp-load.php");
      $value = get_field( "content", $ID ); // $ID = specific post, page id
      echo $value;

 ?>

This code is worked for me, I hope its work for you as well.