plugin-development - Read For Learn

WordPress Admin Login Custom Logo

I personally like to use something like this. This will look for a logo image in your templates /images/ folder or directory, then display it in place of the default WordPress Logo. function my_login_logo() { if(file_exists(TEMPLATEPATH.’/images/logo.png’)) $logo = ‘/images/logo.png’; else if(file_exists(TEMPLATEPATH.’/images/logo.jpg’)) $logo = ‘/images/logo.jpg’; else if(file_exists(TEMPLATEPATH.’/images/logo.gif’)) $logo = ‘/images/logo.gif’; ?> <style type=”text/css”> body.login div#login h1 … Read more

Template directory in plugin

I suppose, you want it to be like that: <?php echo get_stylesheet_directory_uri(); ?>/documentation/index.html

How to get the post excerpt using post object?

$nex_obj = get_adjacent_post(false, ”, true); If there is an adjacent (previous) post, this should work. You should be able to get the excerpt with: echo $nex_obj->post_excerpt; However, what you will get is the manually created excerpt. If you are expecting the automatically created excerpt you won’t get it. That is created on display from the … Read more

WP Plugin Running before jQuery

Your code doesn’t work because of a fundamental ordering problem. You’re hooking into wp_footer. Then you’re registering a script and enqueueing it. Finally, you echo some code. Here’s the problem, the act of enqueueing a script does not cause an echo of the script code immediately. Enqueueing does just what it says, it sets the … Read more

Use ‘get’ form action within a WordPress plugin admin page

Try to use this code, <form action=”http://www.mydomain.com/wp-admin/admin.php” method=”get”> <input type=”hidden” name=”page” value=”my-plugin.php” /> <input type=”text” class=”mydatepicker” name=”start_date” value=””/> <input type=”submit” value=”submit”> </form> This will show the url like this… http://www.mydomain.com/wp-admin/admin.php?page=my-plugin.php&start_date=2014-04-03 Check and let me know your comments, if it works

Why is my plugin version 0.1?

Your version number in your plugin header. leaflet-map.php: <?php /* Plugin Name: Leaflet Map Plugin URI: http://twitter.com/bozdoz/ Description: A plugin for creating a Leaflet JS map with a shortcode. Version: 0.1 Author: Benjamin J DeLong Author URI: http://twitter.com/bozdoz/ License: GPL2 */

How to set a cookie for logged in users to md5($user->ID . “my_secret”)?

Nevermind, I’ve figured it out: function init() { $user = wp_get_current_user(); if (!$user instanceof WP_User) return; $year = time() + 60 * 60 * 24 * 30 * 12; $auth = md5(join(‘_’, array($user->ID, “my secret”))); setcookie(‘visitor_id’, $user->ID, $year, “https://wordpress.stackexchange.com/”); setcookie(‘visitor_auth’, $auth, $year, “https://wordpress.stackexchange.com/”); } add_action(‘init’, ‘init’);

How to cancel update messages from a changed plugin

The quick and easy method to do this is to edit the Version. For example if the version no. is 1.1.2 edit to make it to 100.1.2. Hence your plugin will not ask you to update itself unless it reachess the version no. 100.1.2. You can edit this version no. in the plugins main php … Read more

register_activation_hook on multisite

And the answer is that a datetime cant have the CURRENT_TIMESTAMP default value since MySQL 5.6.5 so I changed modify_date from datetime to timestamp and all is good.

get_option() will not work without access to wp-config.php

You don’t. The get_option() function is a WordPress function. You cannot use it without loading WordPress. More to the point, you should not be calling a file in your plugin directly. You should make your form or whatever is directly linking to that file link to a normal WordPress endpoint instead, and have additional parameters … Read more

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