Update compare-strings-hamming-distance.php

got rid of 0 as min value as it is pointless to do -0 twice

compare-strings-hamming-distance.php

@@ -54,7 +54,7 @@ function textToBin($str)
 
     }
 
-    if($normalize) return (1-0)/(strlen($bins[0]) - 0) * ($hammingDistance + (strlen($bins[0])-strlen($bins[1])) - strlen($bins[0])) + 1;
+    if($normalize) return 1/(strlen($bins[0])) * ($hammingDistance + (strlen($bins[0])-strlen($bins[1])) - strlen($bins[0])) + 1;
 
     // add the length difference between the two string, as every non existent
     // bit is different than any existing one.