php code on how to close the current window

Question

When I click a button it opens up a popup window, there I submit some values which will be processed under a server side code. My problem is, I need to close this window from there, I tried all the possible answers from the stackoverflow. any suggestions are appreciated

Here is the below code, which I used in the server side

echo '<script>alert("Task closed successfully"); window.close(); 
header("location: dispclosedtask.php?key=".$followuptaskid);

Answer 1

Get rid of all the PHP code you've shared. What you currently have is basically:

1. JavaScript code to close current window:

    alert("Task closed successfully"); window.close();
   

2. PHP code to load a different page before the browser has the chance of running prior JavaScript:

    header("location: dispclosedtask.php?key=".$followuptaskid);
   

Everything you need is:

<script>
alert("Task closed successfully");
window.close();
</script>

Answer 2

after youre done submitting do this :

<?php    
    echo "<script>window.close();</script>";
?>

Answer 3

I have completed this task successfully, thank you all for your sharings.