Question

Sometimes my scripts produce an error, mostly a Warning.
I have sometimes an idea why this happens, but I have also no clue sometimes why it happens.

Now my question: Is it possible that if a warning gets showed, I can see for what was in the variable?

“Warning: Invalid argument supplied for foreach() in ….”;

I get this message but no clue, what was in the variable.
The problem is, it’s a script running few hours, with different data, so it’s hard to reproduce it. Because, I don’t know what was in the variable.

I need this for all kind of Warnings / Errors / Notice / Fatal Error etc.

Thanks for the help.

P.S.

Answer 1

you have a full chapter in php dedicated to errors: http://www.php.net/manual/en/book.errorfunc.php

From the php manual: http://www.php.net/manual/en/function.set-error-handler.php

function myErrorHandler($errno, $errstr, $errfile, $errline)
{
    if (!(error_reporting() & $errno)) {
        // This error code is not included in error_reporting
        return;
    }

    switch ($errno) {
    case E_USER_ERROR:
        echo "<b>My ERROR</b> [$errno] $errstr<br />\n";
        echo "  Fatal error on line $errline in file $errfile";
        echo ", PHP " . PHP_VERSION . " (" . PHP_OS . ")<br />\n";
        echo "Aborting...<br />\n";
        exit(1);
        break;

    case E_USER_WARNING:
        echo "<b>My WARNING</b> [$errno] $errstr<br />\n";
        break;

    case E_USER_NOTICE:
        echo "<b>My NOTICE</b> [$errno] $errstr<br />\n";
        break;

    default:
        echo "Unknown error type: [$errno] $errstr<br />\n";
        break;
    }

    /* Don't execute PHP internal error handler */
    return true;
}