回答編集履歴
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追記
test
CHANGED
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@@ -51,3 +51,47 @@
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51
51
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</form>
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```
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# 追記
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PHPだけでジャッジしたいならこう
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60
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```PHP
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<?PHP
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64
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65
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$ch=filter_input(INPUT_POST,"ch",FILTER_DEFAULT,FILTER_REQUIRE_ARRAY);
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$gakunen=filter_input(INPUT_POST,"gakunen",FILTER_DEFAULT,FILTER_REQUIRE_ARRAY);
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if(!is_null($ch)){
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$keys=array_keys($ch);
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$gakunen=array_filter($gakunen,function($x) use($keys){
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return in_array($x,$keys)!==false;
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},ARRAY_FILTER_USE_KEY);
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print_r($gakunen);
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}
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?>
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<form method="post">
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<div><label><input type="checkbox" name="ch[0]" value="a">選択肢A</lable> 「<input type="text" name="gakunen[0]" value="">」年生</div>
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<div><label><input type="checkbox" name="ch[1]" value="b">選択肢B</lable> 「<input type="text" name="gakunen[1]" value="">」年生</div>
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<div><label><input type="checkbox" name="ch[2]" value="c">選択肢C</lable> 「<input type="text" name="gakunen[2]" value="">」年生</div>
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<input type="submit" value="send">
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</form>
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```
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