admin_url( 'admin-ajax.php' ) ) );
//Load default options: these will be overwritten when the user customizes their widget.
//Keep in mind that there are several means of implementing the quick-subscribe toolkit in your WP pages:
// 1 - add the Ajax Quick Subscribe Widget to a sidebar via the Appearance->widgets toolbar. The user may specify some options specifically for this implementation of the tool in the same menu.
// 2 - add the tool to any text by including the tag '[quicksubscribe]' within any text in a post or page.
// 3 - add the code ' anywhere in your theme php code(minus the backslashes)
// Options 2 and three utilize the settings which are defined via the settings->quick subscribe tool in the admin toolset.
//Some options (like thanks_message, invalid_message, and already_subscribed message are only definable via the settings->quick subscribe menu.
//Add default options for the widget implementation of the tool.
if(get_option("quicksubscribe_widget_button") == null){
update_option("quicksubscribe_widget_button", true);
}
if(get_option("quicksubscribe_widget_button_hide") == null){
update_option("quicksubscribe_widget_button_hide", false);
}
//if(get_option("quicksubscribe_widget_input_redisplay") == null){
// update_option("quicksubscribe_widget_input_redisplay", false);
//}
if(!get_option("quicksubscribe_widget_button_label")){
update_option("quicksubscribe_widget_button_label", "subscribe!");
}
if(!get_option("quicksubscribe_widget_title")){
update_option("quicksubscribe_widget_title", 'Subscribe');
}
if(!get_option("quicksubscribe_widget_description")){
update_option("quicksubscribe_widget_description", "Enter your email to subscribe to future updates");
}
//Add default options for the in-text and in-theme implementations
//it is assumed that the user will add thier own desctiption and title for these implementations
if(get_option("quicksubscribe_button") == null){
update_option("quicksubscribe_button", true);
}
if(get_option("quicksubscribe_button_hide") == null){
update_option("quicksubscribe_button_hide", true);
}
//if(get_option("quicksubscribe_input_redisplay") == null){
// update_option("quicksubscribe_input_redisplay", true);
//}
if(!get_option("quicksubscribe_button_label")){
update_option("quicksubscribe_button_label", "subscribe!");
}
// now addany options which apply to both the widget and in-text, in-theme implementations
if(!get_option("quicksubscribe_tks")){
update_option("quicksubscribe_tks", "Thanks for subscribing. Now add a friend:");
}
if(!get_option("quicksubscribe_invld")){
update_option("quicksubscribe_invld", "Invalid email address");
}
if(!get_option("quicksubscribe_alrdysub")){
update_option("quicksubscribe_alrdysub", "This email is already subscribed");
}
/*+-----------------------------------------------------------------+
| Now define functions
+-----------------------------------------------------------------+
*/
// This function actually does the subscribing
function quick_subscribe_register($source){
require_once( ABSPATH . WPINC . '/registration.php');
$user_email = apply_filters( 'user_registration_email', $source );
$user_login = sanitize_user( str_replace('@','', $source) );
// Check the e-mail address
if ($user_email == '') {
$errors = get_option('quicksubscribe_invld');
} elseif ( !is_email( $user_email ) ) {
$errors = get_option('quicksubscribe_invld');
} elseif ( email_exists( $user_email ) )
$errors = get_option('quicksubscribe_alrdysub');
//do_action('register_post');
if(isset($errors)){
$errors = apply_filters( 'registration_errors', $errors );
$message = $errors;
}
if ( empty( $errors ) ) {
$user_pass = substr( md5( uniqid( microtime() ) ), 0, 7);
$user_id = wp_create_user( $user_login, $user_pass, $user_email );
$user = new WP_User($user_id);
$user->set_role('subscriber');
$message = get_option('quicksubscribe_tks');
if ( !$user_id )
$errors['registerfail'] = sprintf(__('ERROR: Couldn’t register you... please contact the webmaster !'), get_option('admin_email'));
}
return $message;
}
// This function adds functions for the quick subscribe widget
function widget_quick_subscribe_init(){
// Check to see required Widget API functions are defined...
if ( !function_exists('register_sidebar_widget') || !function_exists('register_widget_control') )
return; // ...and if not, exit gracefully from the script.
//This function prints the general quick_subscribe widget
function widget_quick_subscribe($args){
extract($args);
$message = '';
$title = get_option('quicksubscribe_widget_title');
echo $before_widget;
if($title != ''){
echo $before_title . $title . $after_title;
}
//add widget description.
echo get_option('quicksubscribe_widget_description');
echo '
/> Still show email input after successful subscribe
*/?>
Quick Subscribe page
function quicksubscribe_admin() {
if (function_exists('add_options_page')) {
add_options_page('AJAX Quick Subscribe Options', 'AJAX Quick Subscribe', 8, basename(__FILE__), 'quicksubscribe_admin_page');
}
}
//this function does the lifting for the function above
function quicksubscribe_admin_page() {
if (isset($_POST['submit_qs'])) {
echo "
";
}
$output .= "";
return $output;
}
//this function implements the form if it is included in a tag
function quick_subscribe_tag_form($content){
if ( strpos($content, '[quicksubscribe]')){
$output = '
';
$content = str_replace("[quicksubscribe]", $output, $content);
}
return $content;
}
//this function implents the form for the first time when added via tag or theme
function quick_subscribe_form(){
echo '