質問編集履歴
2
test
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<td>
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<input type="text" class="price">
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</td>
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<td>
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<select class="traffic">
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<option value="0"></option>
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<option value="1">片道</option>
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<option value="2">往復</option>
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</select>
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</td>
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<td>
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<input type="text" class="total">
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</td>
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</tr>
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<?php
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$price = $_POST[‘price’];
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$traffic = $_POST['traffic']
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$total = $_POST['total'];
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if ($price == "") {
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echo "<span>※半角数字を入力してください</span>";
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$price = ""; $traffic = "";
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} else if ($traffic == "") {
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echo "<span>※半角数字を入力してください</span>";
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$price = ""; $traffic = "";
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} else if (!is_numeric($price)){
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echo "<span>※半角数字を入力してください</span>";
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$price = ""; $traffic = "";
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} else if (!is_numeric($b)) {
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echo "<span>※半角数字を入力してください</span>";
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$price = ""; $traffic = "";
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}
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Index0 = 0;
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for(i = 0; i < 5; i++){
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index0 += (price[i].value || 0) * (traffic[i].value || 0);
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total[i].value = price[i].value == "" ? "" : ini_val;
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}
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?>
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計算は
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1（入力した数字）×（select）＝（合計）
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2（入力した数字）×（select）＝（合計）
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3（入力した数字）×（select）＝（合計）
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4（入力した数字）×（select）＝（合計）
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5（入力した数字）×（select）＝（合計）
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最後に5つの総合計を計算。
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※下記のコードでは1つしか表示していないです。
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今回やりたいこと
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5つ計算させることと総合計を計算をしたい。また、コードを見やすくしたいと思っております。
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試したこと
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関数とfor文を使ってまとめようとしましたが、for文の中で計算させようと思いましたが、何度やってもうまくいかずに行き詰まってます。
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HTML
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```
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<body>
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<form method="GET" action="index2.php">
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<fieldset>
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<legend>交通費</legend>
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<label>
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<table>
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<tr>
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<th>交通機関</th>
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<th>単価</th>
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<th>利用区分</th>
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<th>合計</th>
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</tr>
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<tr>
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<td>
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<select>
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<option>地下鉄</option>
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<option>JR来線</option>
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</select>
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</td>
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<td>
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<input type="text" name="price">
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</td>
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<td>
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<select name="select">
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<option value="0"></option>
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<option value="1">片道</option>
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<option value="2">往復</option>
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</select>
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</td>
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<td>
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<input type="text" name="total">
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</td>
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</tr>
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<!-- <tr>
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<td>
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<select>
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<option>地下鉄</option>
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<option>JR来線</option>
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</select>
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<td>
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<input type="text" name="price">
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</td>
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<td>
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<select name="select">
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<option value="1">片道</option>
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<option value="2">往復</option>
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</select>
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</td>
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<td>
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<input type="text" name="total">
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<select>
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<option>地下鉄</option>
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<option>JR来線</option>
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</select>
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<td>
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<input type="text" name="price">
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</td>
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<td>
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<select name="select">
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<option value="1">片道</option>
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<option value="2">往復</option>
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</select>
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<input type="text" name="total">
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<select>
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<option>地下鉄</option>
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<option>JR来線</option>
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</select>
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</td>
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<td>
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<input type="text" name="price">
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</td>
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<td>
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<select name="select">
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<option value="0"></option>
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<option value="1">片道</option>
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<option value="2">往復</option>
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</select>
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</td>
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<td>
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<input type="text" name="total">
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</td>
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</tr>
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<tr>
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<td>
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<select>
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<option>地下鉄</option>
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<option>JR来線</option>
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</select>
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</td>
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<td>
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<input type="text" name="price">
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</td>
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<td>
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<select name="select">
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<option value="0"></option>
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<option value="1">片道</option>
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<option value="2">往復</option>
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</select>
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</td>
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<td>
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<input type="text" name="total">
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</td>
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</tr> -->
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</fieldset>
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|
+
|
|
293
|
+
|
|
294
|
+
|
|
295
|
+
|
|
296
|
+
|
|
297
|
+
|
|
298
|
+
|
|
299
|
+
総合計<input type="text" name="all_total">
|
|
300
|
+
|
|
301
|
+
<button id="button">確認</button>
|
|
302
|
+
|
|
303
|
+
|
|
304
|
+
|
|
305
|
+
```
|
|
306
|
+
|
|
307
|
+
送信されたデータ
|
|
308
|
+
|
|
309
|
+
|
|
310
|
+
|
|
311
|
+
```
|
|
312
|
+
|
|
313
|
+
</body>
|
|
314
|
+
|
|
315
|
+
|
|
316
|
+
|
|
317
|
+
<body>
|
|
318
|
+
|
|
319
|
+
|
|
320
|
+
|
|
321
|
+
<?php
|
|
322
|
+
|
|
323
|
+
|
|
324
|
+
|
|
325
|
+
$price = $_REQUEST['price'];
|
|
326
|
+
|
|
327
|
+
$select = $_REQUEST['select'];
|
|
328
|
+
|
|
329
|
+
$total = $_REQUEST['total'];
|
|
330
|
+
|
|
331
|
+
|
|
332
|
+
|
|
333
|
+
$total = $select * $price;
|
|
334
|
+
|
|
335
|
+
?>
|
|
336
|
+
|
|
337
|
+
<form action="index.php" method="POST">
|
|
338
|
+
|
|
339
|
+
|
|
340
|
+
|
|
341
|
+
<select>
|
|
342
|
+
|
|
343
|
+
<option>地下鉄</option>
|
|
344
|
+
|
|
345
|
+
<option>JR来線</option>
|
|
346
|
+
|
|
347
|
+
</select>
|
|
348
|
+
|
|
349
|
+
|
|
350
|
+
|
|
351
|
+
<input type="text" name="price">
|
|
352
|
+
|
|
353
|
+
|
|
354
|
+
|
|
355
|
+
<select name="select">
|
|
356
|
+
|
|
357
|
+
<option value="0"></option>
|
|
358
|
+
|
|
359
|
+
<option value="1">片道</option>
|
|
360
|
+
|
|
361
|
+
<option value="2">往復</option>
|
|
362
|
+
|
|
363
|
+
</select>
|
|
364
|
+
|
|
365
|
+
|
|
366
|
+
|
|
367
|
+
<input type="text" name="total" value="<?php echo ("$total"); ?>">
|
|
368
|
+
|
|
369
|
+
|
|
370
|
+
|
|
371
|
+
<a href="index.php">送信</a>
|
|
372
|
+
|
|
373
|
+
</form>
|
|
374
|
+
|
|
375
|
+
</body>
|
|
376
|
+
|
|
377
|
+
|
|
378
|
+
|
|
379
|
+
```
|
1
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -23,6 +23,8 @@
|
|
|
23
23
|
|
|
24
24
|
|
|
25
25
|
一部記載させていただきます。
|
|
26
|
+
|
|
27
|
+
```ここに言語を入力
|
|
26
28
|
|
|
27
29
|
|
|
28
30
|
|
|
@@ -136,6 +138,8 @@
|
|
|
136
138
|
|
|
137
139
|
?>
|
|
138
140
|
|
|
141
|
+
```
|
|
142
|
+
|
|
139
143
|
|
|
140
144
|
|
|
141
145
|
抜けてる所多いかもしれませんが、
|