stop inserting data in the database when refreshing the page

Question

I am looking for a way to stop inserting or sending data in the database when refreshing the page.

here is my code:

user_details_page.php

<         


        

Answer 1

i have this solution by using session

';
                              $_SESSION["a"]=array();
                              $_SESSION["a"][0]="a".rand(1,100);
                        echo '
';
                              $_SESSION["a"][1]="a".rand(1,100);
                        echo '
';
                              $_SESSION["a"][2]="a".rand(1,100);
                        echo '
';
                              $_SESSION["a"][3]="a".rand(1,100);
                        echo '
';
                        echo '';
        }               
?>