use utf8; does not use result in any code.
>perl -MO=Concise,-exec -e"use utf8; $x='abc';"
1 <0> enter
2 <;> nextstate(main 7 -e:1) v:U,{
3 <$> const[PV "abc"] s
4 <#> gvsv[*x] s
5 <2> sassign vKS/2
6 <@> leave[1 ref] vKP/REFC
-e syntax OK
It has a compile-time effect.
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<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
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