質問編集履歴
3
初心者アイコンの押し忘れ
test
CHANGED
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File without changes
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test
CHANGED
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File without changes
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2
タイトル変更
test
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@@ -1 +1 @@
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|
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1
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-
小数も数字としてカウントするには何の関数を使うべきか
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1
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+
【php】小数も数字としてカウントするには何の関数を使うべきか
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test
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File without changes
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1
htmlのコードの上げ忘れ
test
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File without changes
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test
CHANGED
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@@ -135,3 +135,67 @@
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135
135
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?>
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|
136
136
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137
137
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```
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|
138
|
+
|
|
139
|
+
```html
|
|
140
|
+
|
|
141
|
+
<!DOCTYPE html>
|
|
142
|
+
|
|
143
|
+
<html lang="ja">
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|
144
|
+
|
|
145
|
+
<head>
|
|
146
|
+
|
|
147
|
+
<meta charset="UTF-8">
|
|
148
|
+
|
|
149
|
+
<title>電卓</title>
|
|
150
|
+
|
|
151
|
+
</head>
|
|
152
|
+
|
|
153
|
+
<body>
|
|
154
|
+
|
|
155
|
+
<form action="calc1111-3.php" method="post">
|
|
156
|
+
|
|
157
|
+
<input type= "text" name="left" size=3>
|
|
158
|
+
|
|
159
|
+
|
|
160
|
+
|
|
161
|
+
<select name="symbol" size=1>
|
|
162
|
+
|
|
163
|
+
<option value="">選択してください</option>
|
|
164
|
+
|
|
165
|
+
<option value="＋">＋</option>
|
|
166
|
+
|
|
167
|
+
<option value="－">－</option>
|
|
168
|
+
|
|
169
|
+
<option value="×">×</option>
|
|
170
|
+
|
|
171
|
+
<option value="÷">÷</option>
|
|
172
|
+
|
|
173
|
+
</select>
|
|
174
|
+
|
|
175
|
+
|
|
176
|
+
|
|
177
|
+
<input type="text" name="right" size=3> =?
|
|
178
|
+
|
|
179
|
+
<br>
|
|
180
|
+
|
|
181
|
+
<input type="submit" value="計算">
|
|
182
|
+
|
|
183
|
+
<input type="reset" value="クリア">
|
|
184
|
+
|
|
185
|
+
|
|
186
|
+
|
|
187
|
+
</form>
|
|
188
|
+
|
|
189
|
+
<p>計算結果：
|
|
190
|
+
|
|
191
|
+
<?php if($answer == true)
|
|
192
|
+
|
|
193
|
+
echo ($left.' '.$_POST['symbol'].' '.$right.' '.'='.' '.$answer); ?></p>
|
|
194
|
+
|
|
195
|
+
|
|
196
|
+
|
|
197
|
+
</body>
|
|
198
|
+
|
|
199
|
+
</html>
|
|
200
|
+
|
|
201
|
+
```
|