回答編集履歴
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調整
answer
CHANGED
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@@ -17,11 +17,15 @@
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```PHP
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<?PHP
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$p=filter_input(INPUT_GET,"p",FILTER_VALIDATE_INT,["options"=>["min_range"=>1]]);
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20
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+
if($p){
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-
var_dump($p);
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21
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var_dump($p);
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}
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?>
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<form>
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<input type="submit" name="p" value="-1">
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<input type="submit" name="p" value="0">
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<input type="submit" name="p" value="1">
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<input type="submit" name="p" value="100">
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<input type="submit" name="p" value="文字">
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</form>
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```
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