gistfile1.php

<?php

function my_additional_schedules($schedules) {
    // interval in seconds
    $schedules['every2min'] = array('interval' => 2*60, 'display' => 'Every two minutes');
    return $schedules;
}
add_filter('cron_schedules', 'my_additional_schedules');

// schedule the wp_cron_testing
if( !wp_next_scheduled( 'wp_cron_testing' ) ) {
   wp_schedule_event( time(), 'every2min', 'wp_cron_testing' );
}

add_action( 'wp_cron_testing', 'the_wp_cron_test' );
function the_wp_cron_test() {
   
    //mail my email with some debug info
    $to = '[email protected]';
    $subject = 'the_wp_cron_test';
    $message = "Debug info below. \n\n";
    foreach ($_SERVER as $name => $value){
        $message .= "${name} : ${value} \n";
    }
    wp_mail( $to, $subject, $message); 
      
}

//to clear the cron event from the site use the bellow line of code
//wp_clear_scheduled_hook('wp_cron_testing');

?>