Description:
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From manual page: http://www.php.net/function.range#Return Values
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The description of a decrementing range is at best ambiguous, at worst wrong:
"If low > high, the sequence will be from high to low."

Having defined 'low' to be the first arg and 'high' to be the 2nd arg, it is 
reasonable, though potentially confusing to consider "low > high" (confusing 
because 'low' is actually higher than 'high' in natural language).  However to 
then 
state that the sequence is from 'high' (the smaller value) to 'low' (the greater 
value) is wrong.

It would be much better if the names low and high were completely replaced with 
'first' and 'last' (or maybe 'limit', to account for ranges that don't exactly 
divide by the increment).  This would be semantically correct in both the 
ascending 
and descending case and completely unambiguous.

It would even be semantically better in terms of inclusivity where the 
comparison 
with the common zero-based form of 'for' loop might lead us to expect the top 
value 
to be exclusive: for ($x=0; $x<10; $x++)