I have created "Previous(<<)" and "Next(>>)" navigation button to increase.decrease "month" and "year" but month and year does not change accordingly.

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<html>
<?php
error_reporting(0);
        $date=time();

        $day=date('d',$date); // current day in number.
        $month=date('m',$date); // current month in number.
        $year=date('Y',$date); // current year in number.

        $currentTimeStamp= strtotime("$year-$month-$day");
        $monthName  = date("F", $currentTimeStamp); // Get Current Month Name.
        $numDays = date("t",$currentTimeStamp); // Get how many days are there in the current month.
?>

<?php
        if(isset($_GET['p']))
        {

                $month=$month-1;
                $currentTimeStamp= strtotime("$year-$month-$day");
                $monthName  = date("F", $currentTimeStamp);
        }
        else if (isset($_GET['q']))
        {

                $month=$month+1;
                $currentTimeStamp= strtotime("$year-$month-$day");
                $monthName  = date("F", $currentTimeStamp);
        }
?>

    <table>
        <tr>
            <td>
                    <td>
                    <?php
                        echo "<a href='cal.php?p=$month'> << </a>
                        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";
                    ?>
                    </td>

                    <th> <?php echo $monthName.", ".$year."  "; ?> </th>


                    <td colspan=5 align="left">
                    <?php
                        echo "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                        <a href='cal.php?q=$month'> >> </a>
                        ";
                    ?>
            </td>
        </tr>
    </table>

</html>

Posted 6-Oct-15 5:12am

Member 11930850

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Member 11930850 6-Oct-15 11:20am

Steps: If you do not understand the problem, then copy the code and paste it in any editor (like: edit plus) and save it in localhost. Open it in any browser.

Issue: If "October, 2015" is appearing and you click on previous button it shows "September, 2015" but when you clic on "next" button it shows "November, 2015" instead of "October,2015". Also it only moves a month behind or forward.

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