different coding environments, one function handles both

[faifas]

Hey, developers,

please critique my code, I believe you will have some tips about the foreach();

function send_message($args) {

global $oDB;

//defining environment
if ( ! empty( $oDB ) ) {
	$mode = 'OOP';
}
else {
	$mode = 'plain';
}

if ( $from === 0 ) {
	$from = $_SESSION['login'];
}

$values = array(
	'to', 'from', 'message', 'date' => 'NOW()', 'subject' => 'none'
);

foreach ( $values as $var_name => $default_value ) {

	//if no default value
	if ( is_int( $var_name ) ) {
		${$default_value} = $args[$default_value];
	}
	//var is not set, using default value
	elseif ( ! isset( $args[$var_name] ) ) {
		${$var_name} = $default_value;
	}
	//var is set
	else {
		${$var_name} = $args[$var_name];
	}

	//$oDB escapes automatically
	if ( $mode === 'plain' ) {
		${$var_name} = mysql_real_escape_string( ${$var_name} );
	}
}

if ( $mode === 'OOP' ) {
	$aMessage = array(
		compact('to'),
		compact('from'),
		compact('message'),
		'date' => 'NOW()',
		compact('subject'),
	);

	$oDB->save('[messages]', $aMessage);
}
else {
	mysql_query("INSERT INTO `[messages]` SET `to` = '$to', `from` = '$from', `message` = '$message', `date` = NOW(), `subject` = '$subject'") or die ('An error occured while sending message. Please try again.');
}
}

Thanks in advance,
Faifas