Question

It seems PHP’s error suppressor @ is still triggering my custom error handler although it doesn’t show error’s on screen.

Example:

@json_decode(array());

This will not output error messages on screen but it will still run my error handler (e.g., log the error, send me email, terminate script execution, as if there was a “real” error).

Is there a way for @ to totally be silent?

Answer 1

I don’t believe you can prevent the error handler from seeing errors that were suppressed by @.

You can however isolate those errors and ignore them at your own risk.

Put the following code in your error handler:

// get the current error reporting level
$level = error_reporting();

// if error was supressed or $errno not set in current error level
if ($level == 0 || ($level & $errno) == 0) {
    return true;
}

Note that $errno is the first argument to the error handler callback.