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【PHP基礎復習7】掛け算②

Last updated at Posted at 2022-09-06

[問題]
ユキさんは、部屋の壁にポスターを貼ろうとしています。
1枚で幅Acmのものを4枚貼ると、幅は合計何cmになるでしょうか。

コード

$input = fgets(STDIN);
echo $input*4, PHP_EOL;

↓ 30と入力

結果

120
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