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@fantm21

【PHP】割り算の切り上げ、切り捨て、四捨五入

Posted at

まずはじめに

ちょっとあることをしている処理にかかる時間を計測して時間・分・秒に変換する際に調べることになったので記録。

『処理にかかる時間を計測して時間・分・秒に変換して表示するというのを行う』というのは後で違う記事として掲載しておきます。

#本題

切り捨て

floor(x/y)

切り上げ

ceil(x/y)

四捨五入

round(x/y)

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