I'm presuming you intended string rather than numeric comparisons (so $a eq 'ABA'). In which case this does it: 
if ($a =~ /^ ( ABA | SCO | ACC | PHC | GHF ) $/x ) { ... }

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Dave.

In reply to Re: Sparing multiple 'or's by dave_the_m
in thread Sparing multiple 'or's by Denis

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