How to calculate the week of the year in php

php method to calculate the current week of the year: [$week = intval(date('W',time()));]. The intval() function is used to obtain the integer value of a variable. It returns an integer value on success and 0 on failure.

Specific method:

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$week = intval(date('W',time()));

## The #intval() function is used to get the integer value of a variable. Returns the integer value of var on success, 0 on failure. An empty array returns 0, a non-empty array returns 1.

The date() function formats the timestamp into a more readable date and time.

W: Week number of the year in ISO-8601 format, each week starts on Monday (newly added in PHP 4.1.0).

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