回答編集履歴
1
sample
test
CHANGED
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@@ -3,3 +3,39 @@
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3
3
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- 可変変数は単に変数の中身をつかって新しい変数を作る仕組み
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4
4
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5
5
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ただ、大抵の場合配列で処理すれば済む場合が多い
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6
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+
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7
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8
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9
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# 可変変数のsample
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10
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11
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12
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13
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```PHP
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14
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15
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foreach(["x","y","z"] as $val){
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16
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17
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$$val=filter_input(INPUT_POST,$val);
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18
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19
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${"h_".$val}=htmlspecialchars($$val);
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20
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21
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}
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22
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23
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print_r([$x,$y,$z]);
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24
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25
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print <<<eof
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26
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27
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<form method="post">
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28
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29
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x:<input type="text" name="x" value="{$h_x}"><br>
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30
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31
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y:<input type="text" name="y" value="{$h_y}"><br>
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32
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33
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z:<input type="text" name="z" value="{$h_z}"><br>
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34
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35
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<input type="submit" value="go">
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36
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37
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</form>
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38
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39
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eof;
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40
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41
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```
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