How to calculate the number of weeks in a month in php

php method to calculate the number of weeks in a month: 1. Create a PHP sample file; 2. Create an empty array; 3. Calculate one through the "function get_weekinfo($month){...}" method The number of weeks in a month is sufficient.

The operating environment of this article: Windows 7 system, PHP version 7.1, Dell G3 computer.

How to calculate the number of weeks in a month in php?

php Calculate the number of weeks in a certain month of a certain year

The code is as follows:

<?php
function get_weekinfo($month){
    $weekinfo = array();//创建一个空数组
    $end_date = date(&#39;d&#39;,strtotime($month.&#39; +1 month -1 day&#39;));//计算当前月有多少天
    for ($i=1; $i <$end_date ; $i=$i+7) {   //循环本月有多少周
        $w = date(&#39;N&#39;,strtotime($month.&#39;-&#39;.$i));  //计算第一天是周几
        $weekinfo[] = array(date(&#39;Y-m-d&#39;,strtotime($month.&#39;-&#39;.$i.&#39; -&#39;.($w-1).&#39; days&#39;)),date(&#39;Y-m-d&#39;,strtotime($month.&#39;-&#39;.$i.&#39; +&#39;.(7-$w).&#39; days&#39;)));
    }                                                    //当周开始时间                    //结束时间
    return $weekinfo;
}
print_r(get_weekinfo(&#39;2017-5&#39;));

Execution result

Array
(
    [0] => Array
        (
            [0] => 2017-05-01
            [1] => 2017-05-07
        )
    [1] => Array
        (
            [0] => 2017-05-08
            [1] => 2017-05-14
        )
    [2] => Array
        (
            [0] => 2017-05-15
            [1] => 2017-05-21
        )
    [3] => Array
        (
            [0] => 2017-05-22
            [1] => 2017-05-28
        )
    [4] => Array
        (
            [0] => 2017-05-29
            [1] => 2017-06-04
        )
)
?>

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