Doesn't it say somewhere that interpolating is faster than multiple .'s? If I remember correctly, each '.' forces a copy, where as interpolation only does it once. 

$string .= $a . $b . $c . $d;

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does like 5 copies, whereas 

$string = "$string$a$b$c$d";

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only does one.

Because of this, I always do interpolation if I can, but I won't go out of my way to do so.

In reply to Re: Optimizing Output by riffraff
in thread Optimizing Output by Dogma

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