<?php
if ( ! defined( 'ABSPATH' ) ) exit; 

// PHP_VERSION_ID is available as of PHP 5.2.7, if our 
// version is lower than that, then emulate it
if (!defined('PHP_VERSION_ID')) {
    $version = explode('.', PHP_VERSION);

    define('PHP_VERSION_ID', ($version[0] * 10000 + $version[1] * 100 + $version[2]));
}

	// Check if post has atleast one image
	function androapp_get_first_image($post_content) {
	  $first_img = '';
	  $output = preg_match_all('/<img.+src=[\'"]([^\'"]+)[\'"].*>/i', $post_content, $matches);
	  $first_img = $matches [1][0];
	  return $first_img;
	}
	
	function convertToFullUrl($src){
            if(strpos($src, "http", 0) != 0 || strpos($src, "/", 0) == 0)
            {
                    return get_bloginfo('wpurl').$src;
            }
            return $src;
	}
        
        function androapp_get_all_images($post_content){
            if(PHP_VERSION_ID > 50207){
                return androapp_get_all_images_using_dom_parser($post_content);
            }else{
                return androapp_get_all_images_using_regex($post_content);
            }
        }
        
        function androapp_get_all_images_using_regex($post_content){
            preg_match_all('/<img.+src=[\'"]([^\'"]+)[\'"].*>/i', $post_content, $matches);
            $arr =  $matches[1];
            $images = array();
            foreach ($arr as $im){
                $image = array();
                $image['src'] = $im;
                $image['width'] = 100;
                $images[] = $image;
            }
            return $images; 
        }
        
        function androapp_get_all_images_using_dom_parser($post_content){
            require_once 'simple_html_dom.php';
            $html = str_get_html($post_content);
            $images = array();
            foreach($html->find('img') as $element) 
            {
                $image = array();
                $image['src'] =  $element->src ;
                $image['height'] = 200;
                $images[] = $image;
            }
            return $images;
        }
        

?>