forminator-redirect-knowledge-quiz-based-on-score.php

<?php 

/**
* Plugin Name: [Forminator] redirect knowledge quiz based on score
* Plugin URI: https://premium.wpmudev.org/
* Description: redirect knowledge quiz based on score; a bit "tricky" setup but seems to wrok fine
* Author: adczk (with adjustments of Prashant Singh)
* Author URI: https://premium.wpmudev.org/
* License: GPLv2 or later
*
* Tested with Forminator  1.23.3
*
* use as MU plugin
* 
* config explained in code comment
*
* 
*/

add_action( 'after_setup_theme', 'wpmudev_forminator_quizes_redirect_results_func', 100 );
function wpmudev_forminator_quizes_redirect_results_func() {

		if ( defined('FORMINATOR_PRO') && class_exists( 'Forminator' ) ) {

			add_filter( 'forminator_quizzes_render_knowledge_result', 'wpmu_forminator_quizzes_redirect_knowledge' , 10, 3 );
			function wpmu_forminator_quizzes_redirect_knowledge( $result_html, $text, $model ) {
	
				$quizzes = array( 16385 ); // quizzes IDs, comma separated
				$redirect_default = "https//github.com"; // default redirect
				// redirects for other results (number is maximum percentage for given redirect) 
				// so e.g. 25 means redirect to google will go if percentage is lower than 25%;
				$redirects = array(
					'25' => 'https://google.com',
					'90' => 'https://wpmudev.com',
				);
				$open_new_tab = false; // if to open redirect url in new tab
				$delay_time = 2000;//delay 2s
		
	
				$result_phrase = "you got \d+\/\d+ correct"; //the test set in "Final Count Message" 
		
				$delimiter = "/"; //must much character between right answers and total answers number in messge (as set above) 
	
	
				if ( !in_array( $model->id, $quizzes ) ) {
					return $result_html;
				}
	
	
				$matches = array();
				$results = array();
	
				$result_phrase = "/" . $result_phrase . "/i";
				if ( preg_match( $result_phrase, $result_html, $matches ) ) {
		
					preg_match( "/\d+\/\d+/", $matches[0], $results );
					$result = explode( $delimiter, $results[0]);
					$right = $result[0];
					$total = $result[1];
		      
          // min/max boundaries to 0-100 - not really neccessary but in case of 
          // unexpected issues and percentage going over 100 or below 0;
					$percentage = max( min( round( ( $right * 100) / $total ), 100 ), 0 );
		
					krsort( $redirects, 1); 
		
					foreach ( $redirects as $percent=>$url ) {
			
						if ( $percentage < $percent ) {
							$redirect_default =  $url; 
						}
			
					}
		
				}
				
				if( $open_new_tab ){
					$result_html .= sprintf('<script>
						setTimeout(function(){
							 window.open( "%s", "_blank"); 
						}, %d)
					</script>', $redirect_default, $delay_time );
				}else{
					$result_html .= sprintf('<script>
						setTimeout(function(){
							 window.location.href= "%s";
						}, %d)
					</script>', $redirect_default, $delay_time );
				}
			
				return $result_html;
			}
		}
}