Need to generate random number after time interval

Question

I'm using my own security form or you can say security challenge question. But the problem is that I have change that question daily manually. Is there any way to change it automatically after every 5 minutes? Here is code of this: if (!$_POST['security_question'] || $_POST['security_question'] != '**PUT HERE YOUR QUESTION?**' ) { $errors[] = t('You must answer security question correctly!'); } '.t('Security Question:').' **PUT HERE YOUR QUESTION?** So I want to change the link "PUT HERE YOUR QUESTION?" in both case randomly after some time interval. JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

I Got The answer and it's working perfectly..!! Thanks to every one // Create a random number between 0 and 9999 every 5 minutes function random() { $interval = 60*5; // Interval in seconds srand(floor(time() / $interval)); echo rand(0, 9999); }