PHP date

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http://php.net/manual/ja/function.mktime.php
http://php.net/manual/ja/function.date.php





<?php

$operation = $_GET["opr"];

$firstday = mktime( 0, 0, 0, date("n"), 1, date("Y"));//今月の１日

$lastday = date("t", $firstday);

$name = $operation;

?>

<table style="text-align: left; width: 100%;" border="0" cellpadding="2" cellspacing="2">

<tbody>

  <tr>

    <td style="vertical-align: center;font-size:1.3em;">操作：<?php echo "{$name}"; ?></td>

    <td style="vertical-align: center;">

      <form action="calendar100.php" name="次の製品を表示⇒⇒">

      <button style="font-size:1.1em;">次を表示⇒⇒</button>

      <input type="text" name="opr" value="next">

      </form>

    </td>

    <td style="vertical-align: center;">

      <form action="calendar100.php" name="前の製品に戻る←←">

      <button style="font-size:1.1em;">前に戻る←←</button>

      <input type="text" name="opr" value="prev">

      </form>

    </td>

    <td style="vertical-align: center;font-size:1.3em;">2013/04/04</td>

  </tr>

</tbody>

</table>
<table style="text-align: left; width: 100%;" border="1" cellpadding="2">

<tr>

  <th style="text-align: center;">日</th>

  <th style="text-align: center;">月</th>

  <th style="text-align: center;">火</th>

  <th style="text-align: center;">水</th>

  <th style="text-align: center;">木</th>

  <th style="text-align: center;">金</th>

  <th style="text-align: center;">土</th>

</tr>

<tr>
<?php

$cell_count = 0;

//先月分⇒空白で埋める

for($idx=0;$idx < date("w", $firstday);$idx++)

{

    echo "<td>-----</td>\n";

    $cell_count++;

}

$day = 1;

while($cell_count < 42):

    if($cell_count % 7 == 0)

    {

        echo "</tr>\n<tr>\n";//週区切り//

    }

    if($day <= $lastday)

    {

        echo "<td>";

        echo "<div style='text-align: center;'>";

        echo "{$day}\n";

        echo "</div>";

        echo "<table style='text-align: left; width: 100%;' border='1' cellpadding='2' cellspacing='2'>";

        echo "<tbody>";

        echo "<tr><td style='vertical-align: top;'><br></td></tr>";

        echo "<tr><td style='vertical-align: top;'><br></td></tr>";

        echo "</tbody>";

        echo "</table>";

        echo "</td>\n";

    } else {

        echo "<td>-----</td>\n";

    }

    $day++;

    $cell_count++;

endwhile;

?>

</tr>

</table>




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