Jfisher446 Posted June 16, 2009 Share Posted June 16, 2009 Looking all around the web for an answer on how to sort this out to no avail. I only hope there is a solution and someone can help me find it. I have a string, for example: AbABCC I want to sort it so all A's (upper or lower case) are together and all B's and so on. Like: AABbCC Now this I understand that something like this is normally a homework assignment, but this is not. I am working on a genetics program and need the genotypes, whether they are a Wild (A) or mutant (a) to be together so that I can tell that Aa result is het for a mutation. I've tried converting to ascii and back but it gives me the ABCDabcd result. Any other thoughts? Link to comment https://forums.phpfreaks.com/topic/162332-solved-alphabetical-sorting-aa-bb-not-abab/ Share on other sites More sharing options...
PFMaBiSmAd Posted June 16, 2009 Share Posted June 16, 2009 natcasesort will probably work. Link to comment https://forums.phpfreaks.com/topic/162332-solved-alphabetical-sorting-aa-bb-not-abab/#findComment-856811 Share on other sites More sharing options...
Jfisher446 Posted June 16, 2009 Author Share Posted June 16, 2009 That works. It actually works very well. The only complaint that I have is instead of AaBbCc, it's putting the lowercase first (aAbBcC.) I would prefer it to be caps first, what I've done to get it how I want is put it together as a string, then strrev($string). Is there a more correct way of doing it? Link to comment https://forums.phpfreaks.com/topic/162332-solved-alphabetical-sorting-aa-bb-not-abab/#findComment-856839 Share on other sites More sharing options...
PFMaBiSmAd Posted June 16, 2009 Share Posted June 16, 2009 I would assign a numerical value to each that would result in the correct sort order, A=1, a=2, B=3,... Then after the sort, change the values back to the actual character. Or, you could swap each case (A becomes a, a becomes A, use natcasesort, then swap the case back. Link to comment https://forums.phpfreaks.com/topic/162332-solved-alphabetical-sorting-aa-bb-not-abab/#findComment-856845 Share on other sites More sharing options...
Jfisher446 Posted June 16, 2009 Author Share Posted June 16, 2009 Both sound like great ideas. I'll give them a try and kudos for the help! Link to comment https://forums.phpfreaks.com/topic/162332-solved-alphabetical-sorting-aa-bb-not-abab/#findComment-857374 Share on other sites More sharing options...
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