function create_a_group() {

  $new_group = new custom_group;

      $new_group->creator_id = 1;
      $new_group->name = ‘test’;
      $new_group->slug = ‘test’;
      $new_group->description = ‘nothing’;
      $new_group->news = ‘whatever’;
      $new_group->status = ‘public’;
      $new_group->is_invitation_only = 1;
      $new_group->enable_wire = 1;
      $new_group->enable_forum = 1;
      $new_group->enable_photos = 1;
      $new_group->photos_admin_only = 1;
      $new_group->date_created = current_time(‘mysql’);
      $new_group->total_member_count = 1;
      $new_group->avatar_thumb = ’some kind of path’;
      $new_group->avatar_full = ’some kind of path’;

  $new_group -> save();

  groups_update_groupmeta( $id, ‘total_member_count’, 1 );
  groups_update_groupmeta( $id, ‘last_activity’, time() );
  groups_update_groupmeta( $id, ‘theme’, ‘buddypress’ );
  groups_update_groupmeta( $id, ’stylesheet’, ‘buddypress’ );

}

function isValidPhoneNumber(ph) {
	if (ph == null) {
		return false;
	}
	var stripped = ph.replace(/[\s()+-]|ext\.?/gi, "");
	return ((/\d{10,}/i).test(stripped));
}

function isValidEmailAddress(emailAddress) {
	var pattern = new RegExp(/^(("[\w-\s]+")|([\w-]+(?:\.[\w-]+)*)|("[\w-\s]+")([\w-]+(?:\.[\w-]+)*))(@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$)|(@\[?((25[0-5]\.|2[0-4][0-9]\.|1[0-9]{2}\.|[0-9]{1,2}\.))((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\.){2}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\]?$)/i);
	return pattern.test(emailAddress);
}

function getRandomPWD($length = 10){
  $password = "";
  $possible = "0123456789bcdfghjkmnpqrstvwxyz";
  $i = 0; 

  while ($i < $length) {
    $char = substr($possible, mt_rand(0, strlen($possible)-1), 1);

    if (!strstr($password, $char)) {
      $password .= $char;
      $i++;
    }
  }
  return $password;
}

Código original

function dateDifference($d1, $d2){
	$v1 = explode("-", $d1);
  $date1 = mktime(0, 0, 0, intval($v1[1]), intval($v1[0]), intval($v1[2]));

	$v2 = explode("-", $d2);
  $date2 = mktime(0, 0, 0, intval($v2[1]), intval($v2[0]), intval($v2[2]));

  $dateDiff = $date2 - $date1;

  return floor($dateDiff/(60*60*24));
}

Solo tenéis que utilizar esta función javascript, que os devolverá un entero con el numero de noches.

function getNumeroDeNits(){
	var d1 = $('#datepicker1').val().split("-");
	var dat1 = new Date(d1[2], parseFloat(d1[1])-1, parseFloat(d1[0]));
	var d2 = $('#datepicker2').val().split("-");
	var dat2 = new Date(d2[2], parseFloat(d2[1])-1, parseFloat(d2[0]));

	var fin = dat2.getTime() - dat1.getTime();
	var dias = Math.floor(fin / (1000 * 60 * 60 * 24))  

	return dias;
}

Esta claro que en html deberíais tener dos campos llamados datepicker1 y datepicker2, con el formato de fecha dd-mm-aaaa.

Cuando desarrollas webs de una sola pagina en las que muestras un contenido u otro en javascript, a menudo queda un poco tosca la transición entre un contenido y otro, lo mejor es hacer un scroll hasta arriba de la pagina y no hay manera más estética de hacerlo que mediante este trozo de código en jquery.

$('html, body').animate({scrollTop:0}, 'slow')

Espero que os guste y os sirva.

	$.fn.extend({
		reset: function() {
	   	return this.each(function() {
				$(this).is('form') && this.reset();
	   	});
		}
	});

function bbentities($string)
{
    $string = strip_tags($string);

    $patterns = array(
        "bold" => "#\[b\](.*?)\[/b\]#is",
        "italics" => "#\[i\](.*?)\[/i\]#is",
        "underline" => "#\[u\](.*?)\[/u\]#is",
        "link_title" => "#\[url=(.*?)](.*?)\[/url\]#i",
        "link_basic" => "#\[url](.*?)\[/url\]#i",
        "color" => "#\[color=(.*?)\](.*?)\[/color\]#is"
    );

    $replacements = array(
        "bold" => "$1",
        "italics" => "$1",
        "underline" => "$1",
        "link_title" => "$2",
        "link_basic" => "$1",
        "color" => "$2"
    );

    return preg_replace($patterns, $replacements, $string);
}

Espero que os sirva

while (list($key, $value) = each($_POST)){
	echo "\n$key => $value 
";
}