Answers for "week number of the month php"

php check weekday of date

$dayofweek = date('w', strtotime($date));
$result    = date('Y-m-d', strtotime(($day - $dayofweek).' day', strtotime($date)));

php check new month

You can use date_parse to parse almost any date format into its components. For example:

$date = date_parse("2012-01-02");
var_dump($date);
Will output:

array(12) {
  ["year"]=>
  int(2012)
  ["month"]=>
  int(1)
  ["day"]=>
  int(2)
  ["hour"]=>
  bool(false)