Alert message after submitting form in PHP

javascriptphp


PHP Snippet 1:

  <script>
      $(document).ready(function(){
          setTimeout(function() {
              <?php
              if( $_GET['status'] == 'success') {
                  echo 'alert("welldone");';
              }
              else{
                  echo 'alert("no good");';
              }
              ?>
              }, 500);
      });
  </script>

PHP Snippet 2:

<img id='workaround' src='https://picsum.photos/1/1'> <!-- any transparent 1x1 image would work -->
<script>
$("#workaround").on( "load", function(){
  alert("Image loaded.");
});
</script>

PHP Snippet 3:

<img id='workaround' src='https://picsum.photos/1/1'>
<script>
$("#workaround").on( "load", function(){

<?php 
if( $_GET['status'] == 'success') {
   echo 'alert("welldone");';
}
else{
   echo 'alert("no good");';
}
?>
});
</script>

PHP Snippet 4:

<script src="alert.js" defer></script>

PHP Snippet 5:

<?
if ($_POST)
    {
    if (empty($_POST['testabc'])) $msg='<script type="text/javascript">alert("BLANK");</script>';
    else $msg='<script type="text/javascript">alert("NOT BLANK");</script>';
    }
?>
<html><head></head><body>
<table>
    <tr>
        <td>
            <form id="finfo" method=POST>
                <input type="text" name="testabc">
                <input type="submit" value="info">
            </form> 
        </td>
    </tr>
</table>
<script type="text/javascript">alert("auto");</script>
<? echo $msg; ?>
</body></html>

PHP Snippet 6:

// This right here responsible to alert the message according to the status.
$message = '';
$show_modal = false;
if( $_GET['status'] == 'success') {
    $message = "Well Done";
    $show_modal = true;
}
else{
    $message = "No Good";
    $show_modal = true;
}

PHP Snippet 7:

    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"></script>

PHP Snippet 8:

    <div class="modal fade" id="myModal" role="dialog">
        <div class="modal-dialog">

            <!-- Modal content-->
            <div class="modal-content">
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal">&times;</button>
                    <h4 class="modal-title">Alert!</h4>
                </div>
                <div class="modal-body">
                    <p><?php echo ($message); ?></p>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
                </div>
            </div>

        </div>
    </div>

PHP Snippet 9:

<?php if($show_modal):?>
    <script> $('#myModal').modal('show');</script>
<?php endif;?>

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