I have inputs $a,$b,$c,$d and $e and outputs $f and $g.
Based on the combinations of values of the inputs the values of outputs will vary. There are around 400 possible combinations.
Is there a better way to write this rather than writing 400 if else statements?
I'm writing in php
if ($a == 'aaa' && $b == 'baaa' && $c == 'abc' && $d == 'zzz' && $e = 'eee')
{
$f = 'Positive';
$g = 'Negative';
}
else if ..... // Have 400 such scenarios.
分享 In my knowledge there is no other option than if else. But, I suggest an algorithmic approach: You can concatenate all the items $a $b ... in just one variable $concat, and then you test your condition on this last one with a : Switch ($concat){case: ...} Maybe you can minimize the number of cases : Example: if $a == 'abbc' then $f='positive' for any value $b $c ...etc You can also create a matrix(400,2) (2 columns and 400 rows) first column is the value of $concat the second one is the value tu put in $f. This matrix can be filled in a loop and used as below : $f=matrix[(string)$concat] The matrix can be filled from a text file like an excel sheet ;)
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