How to Hide a Part of WordPress Post or Page from Non-logged in Visitor

31st Jul 2011 | Posted by reza | 9 Comments

WordPress provide private feature to make your post or page only visible to other editors or site admin. Once a post is set to private, regular visitor won’t be able to read the post.

Now, what a about if We want to hide only a part of the post? This code snippet will show You how to do it.

First, you need to put the code below to function.php file in your active theme. After that, to hide an element or part in the post, you have to put that part between [hide] and [/hide] tags.

For example: [hide]Hidden paragraph bla bla[/hide]

The Non-logged in visitor now can’t read the text between those two tags

Here’s the code for function.php :

function Wp_UCanHide($text) {
    
	global $user_ID;

        if ($user_ID == '') {

	$posdebut = strpos($text, '[hide]');
	$posfin = strpos($text, '[/hide]');
	$posfin = $posfin + 5;
	       

        $texttohide = substr($text,$posdebut,$posfin);
        $text = str_replace($texttohide, "", $text);        
        
        return $text;

        }else{

        $text = str_replace('[hide]', "", $text);
        $text = str_replace('[/hide]', "", $text);

        return $text;

        }
}

// Apply the filters, to get things going
add_filter('the_content', 'Wp_UCanHide');

Hope this tutorial helps.

Credits:
The code is taken from WP UCanHide plugin, http://wordpress.org/extend/plugins/wp-ucanhide/, with a lithe modification.

6 Comments to “How to Hide a Part of WordPress Post or Page from Non-logged in Visitor”

Add Comments (+)

saqib says:

August 2, 2011 at 19:19

Hi,

I think we should use something like

with wordpress shortcode like..

function caption_shortcode( $atts, $content = null ) {
return ” . $content . ”;
}

add_shortcode( ‘caption’, ‘caption_shortcode’ );

[caption]My Caption[/caption]

Reply
- reza says:
  
  August 2, 2011 at 21:46
  
  lol yeah, maybe that’s a better idea
  
  Reply
- saqib says:
  
  August 2, 2011 at 21:49
  
  few missing lines in above comment
  
  if ( is_user_logged_in() ) {
  //
  } else {
  //
  }
  
  Reply
  - reza says:
    
    August 2, 2011 at 21:59
    
    yep, i figured as much
wordpress slideshow plugin says:

August 6, 2011 at 21:04

It’s very important to hide any post or page from non logged in users. If it is done none will be able to read the whole post without logging in. Thus we can increase user of our sites.

Reply
hen party games says:

September 15, 2011 at 12:32

Interesting post – thanks for sharing this information I can see us using it in the future.

Reply