将wordpress中的帖子添加到flexslider中

I'm trying to add images from wordpress to my php page. I have already called the wp-load.php for wordpress:

require_once("blog/wp-load.php");

However, I do not know how to call a specific post where in I could use the images in that post to go to my flex-slider.

<div class="flexslider">
     <ul class="slides">
    <li><img src="<?php
     //????
   ?>" />

How do I call a specific post, then from that specific post I could get all the images filepath, then paste it on the src of the image? I wanted it to be inside a post, so if ever I want to change the image, I just edit the post.

Did you try using get_posts()?

$args = array( 'post_type' => 'attachment',
      'posts_per_page' => -1, 
      'post_status' => 'any', 
      'post_parent' => **THE_ID_OF_THE_POST** );
$attachments = get_posts( $args );
//ETC...