Ninazu

имхо лучшее - враг хорошего

$array1 = array(
  'archive' => array(
    'first' => true,
    'second' => true
  )
);
$array2 = array(
  'archive' => array(
    'first' => false
  )
);
echo "<pre>";
var_dump(array_replace_recursive($array1,$array2));

<VirtualHost *:80>	
	ServerAlias admin.*.loc
	VirtualDocumentRoot /var/www/%2+/public_html
</VirtualHost>

<VirtualHost *:80>	
	ServerAlias *.loc
	VirtualDocumentRoot /var/www/%0/public_html
</VirtualHost>

$return = array();
$absolute_local_script_filename = "/home/user/public_html/index.php";
$stdin = 'Hello';
exec("echo '{$stdin}' | php -f {$absolute_local_script_filename}", $return);