Error handling in PHP

Question

I\'m familiar with some of the basics, but what I would like to know more about is when and why error handling (including throwing exceptions) should be used in PHP, especia

Answer 1

Unhanded errors stop the script, that alone is a pretty good reason to handle them.

Generally you can use a Try-Catch block to deal with errors

try
{
    // Code that may error
}
catch (Exception $e)
{
    // Do other stuff if there's an error
}

If you want to stop the error or warning message appearing on the page then you can prefix the call with an @ sign like so.

 @mysql_query($query);

With queries however it's generally a good idea to do something like this so you have a better idea of what's going on.

@mysql_query($query)
    or die('Invalid query: ' . mysql_error() . '
Line: ' . __LINE__ . '
File: ' . __FILE__ . '

');