Handling and displaying PHP errors at bottom of page

Question

I'm using PHP's set_error_handler(brodeur) so that I can customize the behavior of error handling.

Now I find myself wanting to customize the display location/positioning of the output. Currently, as expected, the errors are displayed where the offending PHP code is located within the markup.

I would preferably like to have the output displayed at the very bottom or very top of the page so that it does not disturb the CSS/layout of the page content.

My issue is that I declare the brodeur function first in my code, then define the set_error_handler(brodeur) code, then comes the <HTML>...</HTML> content.

If I created a DIV wrapper at the bottom of my page (or top) what would be the best way to then place these error strings within that DIV, when the PHP code to do so will not be located within the DIV? Or are there any alternatives I am missing out on?

IMO, this is a non-issue. You should be handling errors from the error log. Displaying errors via UI is a bad practice. — Mike Purcell
– Mike Purcell, Commented Feb 22, 2013 at 22:54
@MikePurcell I disagree as long as the website is not running in production — Explosion Pills
– Explosion Pills, Commented Feb 22, 2013 at 22:55
@ExplosionPills: Ok, I will concede, if in a dev env outputting errors is a good thing so you can immediately see if there are any issues. For this I always use xdebug and let it throw the errors where they occur. — Mike Purcell
– Mike Purcell, Commented Feb 22, 2013 at 22:58
@RayAlex: If you are only speaking about this situation within the context of a dev environment, the look into adding the xdebug module: xdebug.org — Mike Purcell
– Mike Purcell, Commented Feb 22, 2013 at 23:05

skrilled · Accepted Answer · 2013-02-22 22:56:06Z

3

There are multiple ways to go about this. Ideally, you are already separating your views/templates from your actual code. If so, you can set your errors as an array and pass it into the template, and then put it wherever you want.

If you aren't going about it in that method though, you want to use the try and catch functionality of php to handle the error:

$errors = array();
try {
 // do all your code here
}
catch(Exception $e)
{
  // do whatever you want with the error
  // my example is pushing it into an errors array..
  array_push($errors,$e->getMessage());
}
// now do whatever you want with $errors when you're ready..

answered Feb 22, 2013 at 22:56

skrilled

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2 Comments

Dave Lasley Over a year ago

+1 for template/code separation. If you go with try/catch, be aware that PHP is finicky about which errors can actually be caught.

Ray Alex Over a year ago

Bah, I completely overlooked storing it (my mind bent on immediately displaying). Will accept momentarily - thank you

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