Avoid looking into Post content while searching - wordpress

Question

I have created a query using WP_Query for searching posts. Below is the query
$args = array(
's' => 'Keyword'
);
$the_query = new WP_Query( $args );
But the argument 's' always looks into post_title and post_content. I want to change it so it look into post_title only and not into post_content. How to do that?

Answer 1

At first you need to modify the search function of wp, using posts_search filter hook Check this Link, then run your query and argument.
After that, you need to remove that hook after use.
The example code is bellow
<?php
function wpse_11826_search_by_title( $search, $wp_query ) {
if ( ! empty( $search ) && ! empty( $wp_query->query_vars['search_terms'] ) ) {
global $wpdb;
$q = $wp_query->query_vars;
$n = ! empty( $q['exact'] ) ? '' : '%';
$search = array();
foreach ( ( array ) $q['search_terms'] as $term )
$search[] = $wpdb->prepare( "$wpdb->posts.post_title LIKE %s", $n . $wpdb->esc_like( $term ) . $n );
if ( ! is_user_logged_in() )
$search[] = "$wpdb->posts.post_password = ''";
$search = ' AND ' . implode( ' AND ', $search );
}
return $search;
}
add_filter( 'posts_search', 'wpse_11826_search_by_title', 10, 2 );
$args = array(
's' => 'Keyword'
);
$the_query = new WP_Query( $args );
remove_filter( 'posts_search', 'wpse_11826_search_by_title', 500 );
//Then your code goes here....
?>