回答編集履歴
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修正
answer
CHANGED
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@@ -8,4 +8,129 @@
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<table class="table table-bordered">
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```
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`>`で遷移した時のURL見てみると原因わかりますよ。
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`>`で遷移した時のURL見てみると原因わかりますよ。
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追記：
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コードインデントはつけられたほうが読みやすいです。
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コードフォーマット機能のついたエディタ、できればIDE導入を強くすすめます。
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以下はEclipseのコードフォーマットの結果
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```php
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<?php
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date_default_timezone_set('Asia/Tokyo');
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if (isset($_GET['ym'])) {
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$ym = $_GET['ym'];
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} else {
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$ym = date('Y-m');
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}
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$timestamp = strtotime($ym . '-01');
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if ($timestamp === false) {
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$ym = date('Y-m');
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$timestamp = strtotime($ym . '-01');
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}
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$today = date('Y-m-j', time());
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$html_title = date('Y年n月', $timestamp);
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$prev = date('Y-m', mktime(0, 0, 0, date('m', $timestamp) - 1, 1, date('Y', $timestamp)));
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$next = date('Y-m', mktime(0, 0, 0, date('m', $timestamp) + 1, 1, date('Y', $timestamp)));
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$day_count = date('t', $timestamp);
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$youbi = date('w', mktime(0, 0, 0, date('m', $timestamp), 1, date('Y', $timestamp)));
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$weeks = [];
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$week = '';
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$week .= str_repeat('<td></td>', $youbi);
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for ($day = 1; $day <= $day_count; $day ++, $youbi ++) {
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$date = $ym . '-' . $day;
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if ($today == $date) {
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$week .= '<td class="today">' . $day;
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} else {
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$week .= '<td>' . $day;
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}
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$week .= '</td>';
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if ($youbi % 7 == 6 || $day == $day_count) {
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if ($day == $day_count) {
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$week .= str_repeat('<td></td>', 6 - ($youbi % 7));
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}
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$weeks[] = '<tr>' . $week . '</tr>';
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$week = '';
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}
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}
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?>
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<!DOCTYPE html>
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<html lang='ja'>
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<head>
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<meta charset='utf-8'>
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<title>PHPカレンダー</title>
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<link rel="stylesheet"
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href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"
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integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u"
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crossorigin="anonymous">
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<link
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href="https://fonts.googleapis.com/css?family=Noto+Sans+JP&display=swap"
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rel="stylesheet">
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<style>
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.container {
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font-family: 'Noto Sans JP', sans-serif;
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margin-top: 80px;
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}
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h3 {
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margin-bottom: 30px;
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}
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th {
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height: 30px;
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text-align: center;
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}
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td {
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height: 30px;
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}
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.today {
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background: green;
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}
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th:nth-of-type(1), td:nth-of-type(1) {
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color: red;
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}
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th:nth-of-type(7), td:nth-of-type(7) {
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color: blue;
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}
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</style>
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</head>
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<body>
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<div class='container'>
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<h3>
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<a href="?ym=<?php echo $prev; ?>"><</a> <?php echo $html_title; ?> <a
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href="?ym=<?php echo $next; ?>">></a>
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</h3>
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<table class="table table-bordered">
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<tr>
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<th>日</th>
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<th>月</th>
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<th>火</th>
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<th>水</th>
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<th>木</th>
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<th>金</th>
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<th>土</th>
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</tr>
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<?php
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foreach($weeks as $week){
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echo $week;
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}
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?>
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</table>
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</div>
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</body>
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</html>
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```
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