the number of weeks in a given year

[luciole135]

Firstly my apologies if I'm wrong place.
I propose a correction of the function validate_date_values ($date_query = array()) of the /wp-includes/date.php file
the following 341 to 343 lines:
$date = new DateTime();
$date-> setISODate ($date_query year?, 53);
$week_count = $date-> format ('W') = '53'? 53: 52;

may be replaced by a single line (without using the class dateTime):
$week_count = date ('W', mktime (0,0,0,12,28,$date_query year?));

Indeed, the number of weeks in a given year is equal to the corresponding week number of 28 December.
​http://en.Wikipedia.org/wiki/ISO_week_date

[luciole135]

number of weeks in a given year

[morganestes]

#32835 was marked as a duplicate.

[luciole135]

patch for WordPress 4.3

[boonebgorges]

In 33803:

Simplify the weeks-per-year calculation WP_Date_Query::validate_date_values().

Props luciole135.
Fixes #30845.