How can I use javascript to alert these PHP error messages?

Question

How can I javascript alert my php error messages? Here is my code:

<?php echo showmessage($msg)?>

I want to make it into an alert, how can I do that?

side note: i'd recommend finding alternatives to an alert, e.g.: jquery UI model or equiv, "warning/notice/info"-styled paragraph on the page, etc. — zamnuts
– zamnuts, Commented Nov 5, 2013 at 3:18

plalx · Accepted Answer · 2013-11-05 03:15:46Z

1

The use of json_encode makes sure that characters that needs to be escaped are escaped.

<script>
  alert(<?php echo json_encode($msg); ?>);
</script>

answered Nov 5, 2013 at 3:15

plalx

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Comments

Waclock · Accepted Answer · 2013-11-05 03:30:07Z

1

 ?>
  <script type="text/javascript">
    alert("The error is  <?php echo $msg ?>");
    history.back();
  </script>
<?php

Or

echo '<script language="javascript">';
echo 'alert(Message here)';
echo '</script>';

answered Nov 5, 2013 at 3:11

Waclock

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hopefully the message has no " or line breaks in it.

a " wouldn't break it.

True, I'll leave it as " " then.

@Waclock really? alert("The error is I am going to break " because I am mean");