WordPress custom post type search not filtering search based on input

[Josh Johnson]

If you go to: http://joshuajohnson.co.uk/tarva/centres/

At the moment I am using the following query in my search.php file:

$args = array( 
    'post_type' => 'centre', 
    'paged' => $paged,
    'orderby' => 'title',
    'order' => 'ASC',
    'posts_per_page' => 6, //Limits the amount of posts on each page
    'post_title' => 'LIKE %'.$_POST['s'].'%' 
);
$loop = new WP_Query( $args ); 

At the moment if you search anything, the results page shows just first 6 posts of the post type ‘centre’. I’m using a while ( $loop->have_posts() ) : $loop->the_post(); loop to filter results.

Any ideas?

[Author]

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