在同一页面POST提交表单并防止刷新

';

    print_r($_POST);
    echo 'Please try again';

    echo '

'; } else { ?>

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Email:
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Warthog Guinness Stuttgarter Schwabenbr

 

 

 

';   
         
              print_r($_POST);   
              print 'Please try again';   
         
              print '

'; $_SESSION['num']=500; } else { print '

';   
         
              print_r($_POST);   
              echo "However you have submitted";   
              print '

'; } } else { session_start() or die("session is not started"); $_SESSION['num']= 400; ?>

Name:
Email:
Beer:
Warthog Guinness Stuttgarter Schwabenbr