Boopathi Rajan

Add the following code in functions.php within your theme folder for redirect customers into home page after logout in WordPress

add_filter('logout_url', 'new_logout_url', 10, 2);
function new_logout_url($logouturl, $redir)
{
	$redir = get_option('siteurl');
	return $logouturl . '&redirect_to=' . urlencode($redir);
}

Have any doubt, then comment here!

You can use the following code for add custom CSS in WordPress. add your styles in commented part.

add_action(‘admin_head’, ‘my_study_style’);
function my_study_style()
{
//add your styles here
}

Have any doubt, then comment here!

You can use the function get_the_category_list() for this process.

<?php
$categories = get_the_category();
$separator = ' ';
$output = '';
if($categories){
	foreach($categories as $category) {
		$output .= '<a href="'.get_category_link( $category->term_id ).'" title="' . esc_attr( sprintf( __( "View all posts in %s" ), $category->name ) ) . '">'.$category->cat_name.'</a>'.$separator;
	}
echo trim($output, $separator);
}
?>

For more : http://codex.wordpress.org/Template_Tags/get_the_category

Uploaded images are stored as posts with the type “attachment”. Use get_posts() and query for all attachments:

$args = array(
                'post_type' => 'attachment',
                'numberposts' => -1,
                'post_mime_type' =>'image',
                'post_status' => 'inherit',
                'post_parent' => null, // any parent
           );
$attachments = get_posts($args);
if ($attachments) {
    foreach ($attachments as $post) {
         setup_postdata($post);
         the_title();
         the_attachment_link($post->ID, false);
         the_excerpt();
     }
}

Now All images are displayed.

Have any doubt, then comment here!

<input type="text" id="city" name="city" autocomplete="off"/> 
<div id="key"></div>

     var ajaxurl="<?php echo admin_url( 'admin-ajax.php' ); ?>"; 
     var data ={ action: "city_action",  city:cid    };
        $.post(ajaxurl, data, function (response){
                     $('#key').html(response);
           });

       function city_action_callback() {     
       global $wpdb;
            $city=$_GET['city'];
            $result =   $mytables=$wpdb->get_results("select * from ".$wpdb->prefix . "mycity where city like '%".$city."'" );   
            $data = "";
            echo '<ul>'
            foreach($result as $dis)
            {
                         echo '<li>'.$dis->city.'</li>';
            }
            echo '</ul>'    
         die();
       }

Have any doubt, then comment here!

If you want to get category id by using category name then use the following code

function get_category_id($cat_name){
	$term = get_term_by('name', $cat_name, 'category');
	return $term->term_id;
}

then Just call the function with your category name as a parameter. for example

$category_ID = get_category_id('Books');

Now you can get the category Id in variable $category_ID.

Have any doubt, then comment here!

If you want to get all user meta data by using id then use get_user_meta() function.

For example user id is 25. Use the following code for get all user meta data.

<?php
  $all_meta_for_user = get_user_meta( 25 );
  print_r( $all_meta_for_user );
?>

Results:

Array ( 
[first_name] => Array ( [0] => Tom ) 
[last_name] => Array ( [0] => Auger) 
[nickname] => Array ( [0] => tomauger ) 
[description] => etc.... )

Have any doubt, then comment here!

If you want login a user by user ID without password then using the following code

 
  wp_clear_auth_cookie();
  wp_set_current_user($userID);
  wp_set_auth_cookie($userID, true, false);
  update_user_caches($userID);

Have any doubt, then comment here!

If you want to do something after WooCommerce order completed then use this code.

woocommerce_order_status_completed action hook is a built-in hook of WooCommerce. It allows you to execute a function as when the order is completed. Add your stuff in inside of my_function().

add_action( 'woocommerce_order_status_completed', 'my_function' );
/*
 * Do something after WooCommerce sets an order on completed
 */
function my_function($order_id) {
	
	// order object (optional but handy)
	$order = new WC_Order( $order_id );
	// do some stuff here
	
}

Have any doubt, then comment here!

To start, create a new folder in your “wp-content/plugins” folder called “my-plugin”. Then create a new file within this folder called “myplugin.php” and place this code:

<?php
/*
Plugin Name: my plugin
Plugin URL: http://www.boopathirajan.com
Description: A simple WordPress plugin
Version: 1.0
Author: Boopathi Rajan
Author URI: http://www.boopathirajan.com
*/
?>

If you refresh your administration panel’s plugin page, you’ll now see our plugin listed along with the other ones.Let’s go and activate our plugin by clicking Activate to the right of the plugin entry.

Have any doubt, then comment here!