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@ 2016-08-03T01:46:51Z

<?php
    function weekCounter($startDate,$endDate=null){
        
        //use today as endDate if no date was supplied
        $endDate = $endDate? : date('Y-m-d');

        //calculate # of full weeks between dates
        $secsPerWeek = 60 * 60 * 24 * 7;
        $fullWeeks = 
                floor((strtotime($endDate) - strtotime($startDate))/$secsPerWeek);
    
        $fullMonths = floor($fullWeeks/4);
        $weeksRemainder = $fullWeeks % 4; // weeks that don't fit in a month

        //increment from 0-base to 1-base, so first week is Week 1. Same with months
        $fullMonths++; $weeksRemainder++;
    
        return [$fullMonths,$weeksRemainder];
    }
$startDate = '2016-06-27';

//put function results in $months and $weeks variables
list($months,$weeks) = weekCounter($startDate);

//you can use the variables however you want
echo "Month: $months, Week: $weeks";

Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.13: Month: 63, Week: 3
Output for 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/qY2OX on line 18
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Parse error: syntax error, unexpected ':' in /in/qY2OX on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected ':' in /in/qY2OX on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/qY2OX on line 5
Process exited with code 255.

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