studio-m https://blog.hatena.ne.jp/studio-m/ Lism.in * blog - nekoya (id:studio-m) https://studio-m.hatenadiary.org/ perl #!/usr/bin/perl use strict; use warnings; { use utf8; my $res = ('１２３' =~ /^\d+$/) ? "match" : "unmatch"; print "use utf8 ... $res\n"; } { no utf8; my $res = ('１２３' =~ /^\d+$/) ? "match" : "unmatch"; print " no utf8 ... $res\n"; } これを実行すると、こうなる。 use utf8 ... match no utf8 ... unmatchこれをDBのintegerなカラ… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fstudio-m.hatenadiary.org%2Fentry%2F20080319%2F1205885311" title="use utf8すると\dで全角数字がマッチする - Lism.in * blog - nekoya (id:studio-m)" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2008-03-19 09:08:31 rich https://studio-m.hatenadiary.org/entry/20080319/1205885311 1.0 100%