Ayuda con archivo functions.php

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    $json_string = file_get_contents('http://urls.api.twitter.com/1/urls/count.json?url=' . $url);

<?php
define( 'EDD_SL_STORE_URL', 'https://mundothemes.com' ); /*IMPORTANTE: no modifique esta linea el theme podria dejar de funcionar correctamente*/
define( 'EDD_SL_THEME_NAME', 'wpviral' ); /*IMPORTANTE: no modifique esta linea el theme podria dejar de funcionar correctamente*/ 
if ( !class_exists( 'EDD_SL_Theme_Updater' ) ) {
include( dirname( __FILE__ ) . '/actualizar.php' );
}
function edd_sl_sample_theme_updater() {
$test_license = trim( get_option( 'edd_sample_theme_license_key' ) );
$edd_updater = new EDD_SL_Theme_Updater( array(
'remote_api_url' 	=> EDD_SL_STORE_URL, 	
'version' 			=> '1.5.2', /* enviado el 01/11/2014 a las 19:00 horas */ 				
'license' 			=> $test_license, 		
'item_name' 		=> EDD_SL_THEME_NAME,
'author'			=> 'Mundothemes') ); /*IMPORTANTE: no modifique esta linea el theme podria dejar de funcionar correctamente*/
}
// Deshabilitar admin top bar
add_filter( 'show_admin_bar', '__return_false' );
// Incluyendo el framework
include_once 'includes/framework/options-init.php';
// Tamaños de las imagenes
function imagenes_size() {
add_theme_support( 'post-thumbnails' );
add_image_size('home', 500, 0, true);
add_image_size('sidebar', 300, 160, true);
}
add_action('after_setup_theme', 'imagenes_size');
// Registro de menu
function register_my_menu() {
register_nav_menu('top_menu',__( 'Menu del Header' ));
}
add_action( 'init', 'register_my_menu' );
// paginador
function pagination($pages = '', $range = 2) { 
	$showitems = ($range * 2)+1;
	global $paged; if(empty($paged)) $paged = 1;
	if($pages == '') {
		global $wp_query; $pages = $wp_query->max_num_pages; 
		if(!$pages){ $pages = 1; } 
	}
	if(1 != $pages) { 
		echo "<div class='paginador'>";
		
		if($paged > 2 && $paged > $range+1 && $showitems < $pages) 
			echo "<a class=previouspostslink' rel='nofollow' href='".get_pagenum_link(1)."'>&laquo; Primera</a>";
		if($paged > 1 && $showitems < $pages) 
			echo "<a class=previouspostslink' rel='nofollow' href='".get_pagenum_link($paged - 1)."'>&lsaquo; Anterior</a>";
		for ($i=1; $i <= $pages; $i++){ 
			if (1 != $pages &&( !($i >= $paged+$range+1 || $i <= $paged-$range-1) || $pages <= $showitems )) { 
				echo ($paged == $i)? "<span class='current'>".$i."</span>":"<a rel='nofollow' class='page larger' href='".get_pagenum_link($i)."'>".$i."</a>";
			} 
		} 
		if ($paged < $pages && $showitems < $pages) 
			echo "<a rel='nofollow' class=previouspostslink' href='".get_pagenum_link($paged + 1)."'>Siguiente &rsaquo;</a>";
		if ($paged < $pages-1 &&  $paged+$range-1 < $pages && $showitems < $pages) 
			echo "<a rel='nofollow' class=previouspostslink' href='".get_pagenum_link($pages)."'>Ultima &raquo;</a>";
			echo "</div>"; 
	}
}
// Cargando las imagenes a Wordpress.
function insert_attachment($file_handler,$post_id,$setthumb='false') {
if ($_FILES[$file_handler]['error'] !== UPLOAD_ERR_OK){ return __return_false(); 
} 
require_once(ABSPATH . "wp-admin" . '/includes/image.php');
require_once(ABSPATH . "wp-admin" . '/includes/file.php');
require_once(ABSPATH . "wp-admin" . '/includes/media.php');
echo $attach_id = media_handle_upload( $file_handler, $post_id );
if ($setthumb == 1) update_post_meta($post_id,'_thumbnail_id',$attach_id);
return $attach_id;
}
// Post_type Vieos //
	$category_args = apply_filters( 'edd_videos_category_args', array(
			'hierarchical' 	=> true,
			'labels' 		=> apply_filters('edd_videos_category_labels', $category_labels),
			'show_ui' 		=> true,
			'query_var' 	=> 'videos_category',
			'rewrite' 		=> array('slug' => $slug . '/category', 'with_front' => false, 'hierarchical' => true ),
			'capabilities'  => array( 'manage_terms' => 'manage_product_terms','edit_terms' => 'edit_product_terms','assign_terms' => 'assign_product_terms','delete_terms' => 'delete_product_terms' )
		)
	);
	register_taxonomy( 'videos_category', array('videos'), $category_args );
	register_taxonomy_for_object_type( 'videos_category', 'videos' );
function videos() {

	$labels = array(
		'name'                => _x( 'Videos', 'Post Type General Name', 'noticias' ),
		'singular_name'       => _x( 'Video', 'Post Type Singular Name', 'noticias' ),
		'menu_name'           => __( 'Videos', 'videos' ),
		'parent_item_colon'   => __( 'Parent Item:', 'videos' ),
		'all_items'           => __( 'Todos los videos', 'videos' ),
		'view_item'           => __( 'Ver video', 'videos' ),
		'add_new_item'        => __( 'Agregar Video', 'videos' ),
		'add_new'             => __( 'Agregar nuevo', 'videos' ),
		'edit_item'           => __( 'Editar', 'videos' ),
		'update_item'         => __( 'Actualizar', 'videos' ),
		'search_items'        => __( 'Buscar', 'videos' ),
		'not_found'           => __( 'No se encontro', 'videos' ),
		'not_found_in_trash'  => __( 'No se encontro en la pelera', 'videos' ),
	);
	$rewrite = array(
		'slug'                => 'videos',
		'with_front'          => true,
		'pages'               => true,
		'feeds'               => true,
	);
	$args = array(
		'label'               => __( 'videos', 'videos' ),
		'description'         => __( 'Agregar Videos', 'videos' ),
		'labels'              => $labels,
		'supports'            => array( 'title', 'editor', 'excerpt', 'author', 'thumbnail', 'comments', 'trackbacks', 'revisions', 'custom-fields', 'page-attributes', 'post-formats', ),
		'taxonomies'          => array( 'category', 'post_tag' ),
		'hierarchical'        => false,
		'public'              => true,
		'show_ui'             => true,
		'show_in_menu'        => true,
		'show_in_nav_menus'   => false,
		'show_in_admin_bar'   => true,
		'menu_position'       => 5,
		'menu_icon'           => get_bloginfo('template_directory') .'/images/videos.png',
		'can_export'          => true,
		'has_archive'         => true,
		'exclude_from_search' => false,
		'publicly_queryable'  => true,
		'rewrite'             => $rewrite,
		'capability_type'     => 'page',
	);
	register_post_type( 'videos', $args );

}
add_action( 'init', 'videos', 0 );
//// #################################################### /////
$sp_boxes = array (
    'ID de Youtube (opcional)' => array (
	array( 'idyt', 'ID video de Youtube' ),

    ),
    'Embed Video' => array (
       array( 'embed', 'Codigo embed del video:', 'textarea' ),
    ),
	'Duracion del video' => array (
        array( 'duracion', 'Duracion del video' ),	
    ),
);
add_action( 'admin_menu', 'sp_add_custom_box' );
add_action( 'save_post', 'sp_save_postdata', 1, 2 );
function sp_add_custom_box() {
    global $sp_boxes;
    if ( function_exists( 'add_meta_box' ) ) {
        foreach ( array_keys( $sp_boxes ) as $box_name ) {
            add_meta_box( $box_name, __( $box_name, 'sp' ), 'sp_post_custom_box', 'videos', 'normal', 'high' );
        }
    }
}
function sp_post_custom_box ( $obj, $box ) {
    global $sp_boxes;
    static $sp_nonce_flag = false;
    if ( ! $sp_nonce_flag ) {
        echo_sp_nonce();
        $sp_nonce_flag = true;
    }
    foreach ( $sp_boxes[$box['id']] as $sp_box ) {
        echo field_html( $sp_box );
    }
}
function field_html ( $args ) {
    switch ( $args[2] ) {
        case 'textarea':
        return text_area( $args );
        case 'checkbox':
        case 'radio':
        case 'text':
        case 'submit':
        default:
            return text_field( $args );
    }
}
function text_field ( $args ) {
    global $post;
    // adjust data
    $args[2] = get_post_meta($post->ID, $args[0], true);
    $args[1] = __($args[1], 'sp' );
    $label_format =
          '<label for="%1$s">%2$s</label><br />'
        . '<input style="width: 95%%;" type="text" name="%1$s" value="%3$s" /><br /><br />';
    return vsprintf( $label_format, $args );
}
function text_area ( $args ) {
    global $post;
    // adjust data
    $args[2] = get_post_meta($post->ID, $args[0], true);
    $args[1] = __($args[1], 'sp' );

    $label_format =
          '<label for="%1$s">%2$s</label><br />'
        . '<textarea style="width: 95%%;" name="%1$s">%3$s</textarea><br /><br />';

    return vsprintf( $label_format, $args );
}
function sp_save_postdata($post_id, $post) {
    global $sp_boxes;
    if ( ! wp_verify_nonce( $_POST['sp_nonce_name'], plugin_basename(__FILE__) ) ) {
        return $post->ID;
    }
    if ( 'page' == $_POST['post_type'] ) {
        if ( ! current_user_can( 'edit_page', $post->ID ))
            return $post->ID;
    } else {
        if ( ! current_user_can( 'edit_post', $post->ID ))
            return $post->ID;
    }
    foreach ( $sp_boxes as $sp_box ) {
        foreach ( $sp_box as $sp_fields ) {
            $my_data[$sp_fields[0]] =  $_POST[$sp_fields[0]];
        }
    }
    foreach ($my_data as $key => $value) {
        if ( 'revision' == $post->post_type  ) {
            return;
        }
        $value = implode(',', (array)$value);

        if ( get_post_meta($post->ID, $key, FALSE) ) {
            update_post_meta($post->ID, $key, $value);

        } else {
            add_post_meta($post->ID, $key, $value);
        }
        if (!$value) {
            delete_post_meta($post->ID, $key);
        }
    }
}
function echo_sp_nonce () {
    echo sprintf(
        '<input type="hidden" name="%1$s" id="%1$s" value="%2$s" />',
        'sp_nonce_name',
        wp_create_nonce( plugin_basename(__FILE__) )
    );
}
if ( !function_exists('get_custom_field') ) {
    function get_custom_field($field) {
       global $post;
       $custom_field = get_post_meta($post->ID, $field, true);
       echo $custom_field;
    }
}
function get_likes($url) {
    $json_string = file_get_contents('http://graph.facebook.com/?ids=' . $url);
    $json = json_decode($json_string, true);
    return intval( $json[$url]['shares'] );
}  
function get_tweets($url) {
  
[COLOR="#FF0000"]    $json_string = file_get_contents('http://urls.api.twitter.com/1/urls/count.json?url=' . $url);
    $json = json_decode($json_string, true);[/COLOR]
  
    return intval( $json['count'] );
}  
function get_plusones($url) {
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, "https://clients6.google.com/rpc");
    curl_setopt($curl, CURLOPT_POST, 1);
    curl_setopt($curl, CURLOPT_POSTFIELDS, '[{"method":"pos.plusones.get","id":"p","params":{"nolog":true,"id":"' . $url . '","source":"widget","userId":"@viewer","groupId":"@self"},"jsonrpc":"2.0","key":"p","apiVersion":"v1"}]');
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl, CURLOPT_HTTPHEADER, array('Content-type: application/json'));
    $curl_results = curl_exec ($curl);
    curl_close ($curl);
  
    $json = json_decode($curl_results, true);
  
    return intval( $json[0]['result']['metadata']['globalCounts']['count'] );
}  
function seo_wpViral() {
global $page, $paged, $post;
$output = '';
if (is_category() || is_tag()) {
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
if ($paged > 1) {
$output .=  "" . '<meta name="robots" content="noindex,follow">' . "\n";
} else {
$output .=  "" . '<meta name="robots" content="index,follow">' . "\n";
  }
} else if (is_home() || is_singular()) {
$output .=  "" . '<meta name="robots" content="index,follow">' . "\n";
} else {
$output .= "" . '<meta name="robots" content="noindex,follow">' . "\n";
}
$seo_desc = get_post_meta($post->ID, 'mm_seo_desc', true);
$description = get_bloginfo('description', 'display');
$pagedata = get_post($post->ID);
if (is_singular()) {
if (!empty($seo_desc)) {
$content = $seo_desc;
} else if (!empty($pagedata)) {
$content = apply_filters('the_excerpt_rss', $pagedata->post_content);
$content = substr(trim(strip_tags($content)), 0, 156);
$content = preg_replace('#\n#', ' ', $content);
$content = preg_replace('#\s{2,}#', ' ', $content);
$content = trim($content);
  } 
} else {
$content = $description;	
}
$output .= '<meta name="description" content="' . esc_attr($content) . '" />' . "\n";
$seo_desc = get_post_meta($post->ID, 'mm_seo_desc', true);
$description = get_bloginfo('description', 'display');
$pagedata = get_post($post->ID);
if (is_singular()) {
if (!empty($seo_desc)) {
$content = $seo_desc;
} else if (!empty($pagedata)) {
$content = apply_filters('the_excerpt_rss', $pagedata->post_content);
$content = substr(trim(strip_tags($content)), 0, 500);
$content = preg_replace('#\n#', ' ', $content);
$content = preg_replace('#\s{2,}#', ' ', $content);
$content = trim($content);
  } 
} else {
$content = $description;	
  }
$output .= '<meta property="og:description" content="' . esc_attr($content) . '" />' . "\n";
	return $output;
}
 add_filter( 'pre_get_posts', 'my_get_posts' );
function my_get_posts( $query ) {
if ( is_home() && false == $query->query_vars['suppress_filters'] )
$query->set( 'post_type', array(
'post', 'videos' ) );
    return $query;
 }  
 /*************************************************************************************************/
add_action( 'admin_init', 'edd_sl_sample_theme_updater' );
function edd_sample_theme_license_menu() {
add_menu_page( 'Munodthemes Licencia', 'Mundothemes', 'manage_options', 'mundothemes', 'edd_sample_theme_license_page',get_stylesheet_directory_uri()."/" . 'images/key.png');
}
add_action('admin_menu', 'edd_sample_theme_license_menu');
function edd_sample_theme_license_page() {
$license 	= get_option( 'edd_sample_theme_license_key' );
$status 	= get_option( 'edd_sample_theme_license_key_status' );
?>
<div class="wrap">
<h2><?php _e('Theme License Options', 'mundothemes'); ?></h2>
<form method="post" action="options.php">
<?php settings_fields('edd_sample_theme_license'); ?>
<table class="form-table">
<tbody>
<tr valign="top">
<th scope="row" valign="top">
<?php _e('License Key','mundothemes'); ?>
</th>
<td>
<input id="edd_sample_theme_license_key" name="edd_sample_theme_license_key" type="text" class="regular-text" value="<?php echo esc_attr( $license ); ?>" />
<label class="description" for="edd_sample_theme_license_key"><?php _e('Enter your license key','mundothemes'); ?></label>
</td>
</tr>
<?php if( false !== $license ) { ?>
<tr valign="top">
<th scope="row" valign="top">
<?php _e('Activate License', 'mundothemes'); ?>
</th>
<td>
<?php if( $status !== false && $status == 'valid' ) { ?>
<span style="color: green;padding: 5px;float: left;font-weight: bold;"><?php _e('active','mundothemes'); ?></span>
<?php wp_nonce_field( 'edd_sample_nonce', 'edd_sample_nonce' ); ?>
<input type="submit" class="button-secondary" name="edd_theme_license_deactivate" value="<?php _e('Deactivate License','mundothemes'); ?>"/>
<span style="color: #516EC8;padding: 5px;float: left;font-weight: bold;"><?php echo $_SERVER['HTTP_HOST']; ?></span>
<?php } else {  wp_nonce_field( 'edd_sample_nonce', 'edd_sample_nonce' ); ?>
<span style="color: red;padding: 5px;float: left;font-weight: bold;">ERROR</span>
<input type="submit" class="button-secondary" name="edd_theme_license_activate" value="<?php _e('Activate License','mundothemes'); ?>"/>
<?php } ?>
</td>
</tr>
<?php } ?>
</tbody>
</table>
<?php submit_button(); ?>
</form>
<?php
}
function edd_sample_theme_register_option() {
register_setting('edd_sample_theme_license', 'edd_sample_theme_license_key', 'edd_theme_sanitize_license' );
}
add_action('admin_init', 'edd_sample_theme_register_option');
function edd_theme_sanitize_license( $new ) {
$old = get_option( 'edd_sample_theme_license_key' );
if( $old && $old != $new ) {
delete_option( 'edd_sample_theme_license_key_status' ); 
}
return $new;
}
function edd_sample_theme_activate_license() {
if( isset( $_POST['edd_theme_license_activate'] ) ) {
if( ! check_admin_referer( 'edd_sample_nonce', 'edd_sample_nonce' ) )
return; 
global $wp_version;
$license = trim( get_option( 'edd_sample_theme_license_key' ) );
$api_params = array(
'edd_action' => 'activate_license',
'license' => $license,
'item_name' => urlencode( EDD_SL_THEME_NAME )
);
$response = wp_remote_get( add_query_arg( $api_params, EDD_SL_STORE_URL ), array( 'timeout' => 15, 'sslverify' => false ) );
if ( is_wp_error( $response ) )
return false;
$license_data = json_decode( wp_remote_retrieve_body( $response ) );
update_option( 'edd_sample_theme_license_key_status', $license_data->license );
}
}
add_action('admin_init', 'edd_sample_theme_activate_license');
function edd_sample_theme_deactivate_license() {
if( isset( $_POST['edd_theme_license_deactivate'] ) ) {
if( ! check_admin_referer( 'edd_sample_nonce', 'edd_sample_nonce' ) )
return; 
$license = trim( get_option( 'edd_sample_theme_license_key' ) );
$api_params = array(
'edd_action'=> 'deactivate_license',
'license' 	=> $license,
'item_name' => urlencode( EDD_SL_THEME_NAME ) 
);
$response = wp_remote_get( add_query_arg( $api_params, EDD_SL_STORE_URL ), array( 'timeout' => 15, 'sslverify' => false ) );
if ( is_wp_error( $response ) )
return false;
$license_data = json_decode( wp_remote_retrieve_body( $response ) );
if( $license_data->license == 'deactivated' )
delete_option( 'edd_sample_theme_license_key_status' );
}
}
add_action('admin_init', 'edd_sample_theme_deactivate_license');
function edd_sample_theme_check_license() {
global $wp_version;
$license = trim( get_option( 'edd_sample_theme_license_key' ) );
$api_params = array(
'edd_action' => 'check_license',
'license' => $license,
'item_name' => urlencode( EDD_SL_THEME_NAME )
);
$response = wp_remote_get( add_query_arg( $api_params, EDD_SL_STORE_URL ), array( 'timeout' => 15, 'sslverify' => false ) );
if ( is_wp_error( $response ) )
return false;
$license_data = json_decode( wp_remote_retrieve_body( $response ) );
if( $license_data->license == 'valid' ) {
echo 'valid'; exit;
} else {
echo 'invalid'; exit;
	}
}

function get_tweets($url) {
  
    $json_string = file_get_contents('http://urls.api.twitter.com/1/urls/count.json?url=' . $url);
    $json = json_decode($json_string, true);
  
    return intval( $json['count'] );
}

function get_tweets($url) {
  
    return 0;
}