Re: [PHP] Any reason why printf() does not support formats with thousands separator?

Ryan Pallas wrote:

> On Mon, Jul 10, 2017 at 8:40 AM, Per Jessen <[email protected]> wrote:
> 
>> John Iliffe wrote:
>>
>>> On Monday 10 July 2017 03:07:50 Per Jessen wrote:
>>>
>>>> $SUBJ says it all - I've recently discovered that a format such
>>>> as %'.2f" results in this:
>>>>
>>>> php -r "printf(\"%'.2f\", 23232323.237);"
>>>> 23232323.237000
>>>>
>>>> I know that number_format() will do the same, but I am given the
>>>> format spec as an interface, I would need to try to parse it and
>>>> then decide whether to use printf() or number_format().
>>>>
>>>
>>> Try
>>> php -r "printf(\"%.2f\", 232323.4567);"
>>> 232323.46
>>>
>>
>> That works, but doesn't do what I want - add thousands separators :-)
>>
>>
> From the manual [1]: "An alternate padding character can be specified
> by prefixing it with a single quote (')." and doesn't mention using it
> for thousands like the C printf does.

I had not actually read that bit, but I had noticed that the thousands
separator character was not mentioned (as opposed to the C version). 

It just seems such a really odd omission, so I got curious as to why.  I
wonder if anyone's written a fully C-compliant printf() for php? 



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