The first is clearer and less error prone (woe unto you if $str2 ever contains metacharacters as is), but presuming a recent perl both should be equally speedy.

Update: Wow, I must have heard wrong about the re speedups or something; I thought that they supposedly had gotten optimized so fixed strings were on the same order as a vanilla comparison but as the benchmark below shows that's not the case. So yeah, definitely option one.

The cake is a lie.
The cake is a lie.
The cake is a lie.

In reply to Re: Comparing strings case insensitive by Fletch
in thread Comparing strings case insensitive by zemane

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