@ before something...?

ETbyrne · 07-18-2008, 03:01 AM

What exactly is the difference between this...

PHP Code:


			
echo @$_POST['text'];

and this?

PHP Code:


			
echo $_POST['text'];

Thanks in advance, I really have no clue.

Enfernikus · 07-18-2008, 05:13 AM

supresses errors.

Village Idiot · 07-18-2008, 01:04 PM

Its a hack 'n slash way of cutting errors. The best way to do it is to set php.ini not to show them (you can also use ini_set if you dont have access on your host)

Aaron · 07-18-2008, 07:32 PM

You can't always access php.ini...

Wouldn't @ cause less server overhead than ini_set?

Ross · 07-18-2008, 08:06 PM

Quote:

Originally Posted by Aaron

You can't always access php.ini...

Wouldn't @ cause less server overhead than ini_set?

It's still a poor way of doing it (and I don't think it's supported in PHP5) - no errors should be shown on a production site anyway.

Just use php.ini or error_reporting to set E_STRICT and E_ALL on.

Aaron · 07-18-2008, 11:05 PM

Isn't there some other way to intercept an error and throw your own?

delayedinsanity · 07-18-2008, 11:53 PM

You can use exceptions, which boiled down would look something like;

PHP Code:


			
try
{
    userFunc($arg);
}
catch ($e Exception)
{
    die($e->getMessage());
}

function userFunc ($arg)
{
    if ($arg != $met)
        throw new exception('Condition not met');
}

Alternatively you can throw the exception from within the try{} block, it just needs to be thrown from somewhere within the try to be caught. There's also trigger_error() to throw your own errors (preferably in conjunction with a custom error handler).
-m

ETbyrne · 07-19-2008, 04:50 PM

Awesome, thanks for the help guys.