Handling php errors

<?php

	function calcWidgetsPerDay( $totalWidgets, $totalDays )
	{
		if ( $totalDays == 0 )
		{
			trigger_error( "calcWidgetsPerDay(): The total days cannot be zero", E_ERROR);
			return false;
		}
		else
		{
			return ( $totalWidgets / $totalDays );
		}
	}

	function paranoidHandler( $errno, $errstr, $errfile, $errline, $errcontext )
	{
		$levels = array (
			E_WARNING => "Warning",
			E_NOTICE => "Notice",
			E_USER_ERROR => "Error",
			E_USER_WARNING => "Warning",
			E_USER_NOTICE => "Notice",
			E_STRICT => "Strict warning",
			E_RECOVERABLE_ERROR => "Recoverable error",
			E_DEPRECATED => "Deprecated feature",
			E_USER_DEPRECATED => "Deprecated feature"
		);

		$message = date( "Y-m-d H:i:s - " );
		$message .= $levels[$errno] . ": $errstr in $errfile, line $errline\n\n";
		$message .= "Variables:\n";
		$message .= print_r( $errcontext, true ) . "\n\n";
		error_log( $message, 3, "paranoid_errors.log" );
		die( "There was a problem, so I've stopped running. Please try again." );
	}

	set_error_handler( "paranoidHandler" );
	echo calcWidgetsPerDay ( 10, 0 );
	echo "This will never be printed < br / > ";

 ?>