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-99~99の正規表現 正の数負の数

Posted at

-99~99の正規表現

phpのpreg_match()で実行

-0を含まないようにしている。

例1.

qiita.rb
/^(-[1-9][0-9]|0)$|^([1-9][0-9])$/

例2.

qiita.rb
/^(0|-?[1-9]0|-?([1-9]?[1-9]))$/

間違ってたらご指摘ください。

正規表現をチェックするツール
http://okumocchi.jp/php/re.php

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