After creating the hash, using the parameter values as the key (see above), you can search for the parameter with:
if (exists $vars{'parameter'}) {
   # It is there!
}
else {
   # It is not there
}

[download]
This avoids an iterative search through the array.

In reply to Re^3: Speeding up perl script by cdarke
in thread Speeding up perl script by samuelalfred

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