get_results("SELECT * FROM ".$wpdb->prefix."abtest_experiments");
foreach ($experiments as $exp) {
if (!isset($_SESSION['abtest_experiment_'.$wpdb->prefix.'_'.$exp->id.'_variation']) || $_SESSION['abtest_debug']) {
// Get variation
$variation = $wpdb->get_row( $wpdb->prepare("SELECT * FROM ".$wpdb->prefix."abtest_variations WHERE experiment_id=%d AND active=1 ORDER BY RAND() LIMIT 1", $exp->id) );
// Set session
$_SESSION['abtest_experiment_'.$wpdb->prefix.'_'.$exp->id.'_id'] = $variation->id;
$_SESSION['abtest_experiment_'.$wpdb->prefix.'_'.$exp->id.'_variation'] = $variation->content;
$_SESSION['abtest_experiment_'.$wpdb->prefix.'_'.$exp->id.'_name'] = $variation->name;
}
}
}
function abtest_experiment($id) {
echo abtest_get_experiment($id);
}
function abtest_get_experiment($id) {
global $wpdb;
global $abtest_viewed_variations;
$variation_id = $_SESSION['abtest_experiment_'.$wpdb->prefix.'_'.$id.'_id'];
if (!in_array($variation_id, $abtest_viewed_variations)) {
// Add to viewed variations array
$abtest_viewed_variations[] = $variation_id;
}
return $_SESSION['abtest_experiment_'.$wpdb->prefix.'_'.$id.'_variation'];
}
function abtest_name($experiment_id) {
echo abtest_get_name($experiment_id);
}
function abtest_get_name($experiment_id) {
global $wpdb;
return $_SESSION['abtest_experiment_'.$wpdb->prefix.'_'.$experiment_id.'_name'];
}
function abtest_variation_view($variation_id) {
global $wpdb;
if (!$_SESSION['abtest_debug']) {
// Increase views on the variation
$wpdb->query( $wpdb->prepare("UPDATE ".$wpdb->prefix."abtest_variations SET views=views+1 WHERE id=%d", $variation_id) );
$wpdb->query( $wpdb->prepare("
INSERT INTO ".$wpdb->prefix."abtest_variation_views(variation_id, session_id, ip, date)
VALUES(%d, %s, %s, NOW())", $variation_id, session_id(), $_SERVER['REMOTE_ADDR'] ) );
}
}
function abtest_goal_hit($goal_id) {
global $wpdb;
if (!$_SESSION['abtest_debug']) {
$wpdb->query( $wpdb->prepare("
INSERT INTO ".$wpdb->prefix."abtest_goal_hits(goal_id, session_id, ip, date)
VALUES(%d, %s, %s, NOW())", $goal_id, session_id(), $_SERVER['REMOTE_ADDR'] ) );
}
}
add_action('wp_head', 'abtest_head_script');
function abtest_head_script() {
?>
get_results("SELECT * FROM ".$wpdb->prefix."abtest_experiments WHERE type='javascript'");
if (count($experiments) > 0) {
?>
get_results("SELECT * FROM ".$wpdb->prefix."abtest_experiments WHERE type='stylesheet'");
if (count($experiments) > 0) {
?>
'',
'goal' => '',
'variable' => '',
), $atts ) );
if ($experiment != '') {
if ($variable == 'name') {
return abtest_get_name($experiment);
} else {
return abtest_get_experiment($experiment);
}
} elseif ($goal != '') {
$abtest_hit_goals[] = $goal;
} else {
return "Unknown A/B test";
}
}
add_filter('template', 'change_theme');
add_filter('stylesheet', 'change_theme');
function change_theme($theme) {
global $wpdb;
$exp = $wpdb->get_row("SELECT * FROM ".$wpdb->prefix."abtest_experiments WHERE type='theme'");
if ($exp) {
$new_theme = abtest_get_experiment($exp->id);
if ($new_theme != '') {
$theme = $new_theme;
}
}
return $theme;
}
add_action('admin_menu', 'abtest_admin_menu');
function abtest_admin_menu() {
add_menu_page('A/B Testing', 'A/B Testing', 'manage_options', 'abtest', 'abtest_admin');
}
function abtest_admin() {
global $wpdb;
include 'abtest_admin.php';
}
function abtest_rss(){
echo '";
}
add_action('wp_dashboard_setup', 'abtest_rss_widget');
function abtest_rss_widget(){
if (get_option('abtest_show_dashboard_widget', 1)) {
wp_add_dashboard_widget( 'abtest-rss', 'A/B Test for WordPress', 'abtest_rss');
}
}?>