I climbed on an Internet - I did not find anything, it only climbs my head from the last character and deletes if it is zero, but surely there is a more beautiful way?

  • For point and comma preg_replace ('/ (\ d + [.,] \ D +?) 0 * /', '$ 1', '0.100'); - alexlz

6 answers 6

rtrim('0.100', '0')
  • Works only with a string representing a real number. With an integer number, for example 100 , it will return 1. - userlond

If you need to remove the extra zeros on the output, then use the printf () and sprintf () functions. For example:

 $money = 12.12345; $format = sprintf("%01.2f", $money); echo $format;

Displays only 12.12.

  • 2
    It is also worth adding that the number will round up to a given accuracy. sprintf("%.2f", 12.12945); will bring: 12.13 - Alex Kapustin

well, yes, in this case rtrim ('0.100', '0') is best; for clearly implied output somewhere.

  • Great, guys. Thank you very much :) The only thing is that if the database is an integer, then, for example, "2." is output, if necessary, we cut the point off like this: rtrim (rtrim ($ res-> fields ['z_phaze'], '0'), '. '); - Nikoole
  • one
    It can be a single function: rtrim ('2.00', '0.'); // 2 - Ilya Pirogov
  • @Ilya Pirogov, works only with a string representing a real number in the interval (-10; 10). With a number, for example, 100.00 , it will give 1 . - userlond

Em. Something else, my, you are thinking up great bikes, there is a ready-made solution round ()

 $val=0.100; $new_value=round($val,1); echo $new_value; // выведет 0,1

Why invent

it only climbs into the head from the last character and deletes if it is zero

It's just gut.

  • one
    : D It does not vevedet round without a 0.1;) for that matter. - Alex Kapustin
  • Well, output the output \ + round. but the cycle to run on the number of IMHO nonsense. - Artem
  • @Shrek And in round($val,1) where did the number 1 come from? - alexlz
  • @alexlz> 0,100 = 0.1 in the question is up to 1 character after the dot. So clearer? In general, I wrote it myself. And who came up with the figure 1, I don’t know, it’s not even interesting, but I use it :) - Artem
  • one
    @Shrek Yes, I’m talking about the fact that now we have to wait for the question of how to remove the extra zeros in the tail of "0.120". - alexlz

first, the round work will produce the identical sprintf result.

secondly there is no problem:

 $val=0.100; echo $val;

will display: 0.1

On the other hand, if we specify a number as a string:

 $val="0.100"; echo $val;

will display: 0.100

Therefore, we will convert the string to a number and we will get what we need:

 $val="0.100"; echo (float)$val;

will leave: 0.1

  • Why set the number line? - Artem
  • one
    Well, I can only explain this problem with this. that the number is specified by a string / is cut out from somewhere / ... / but the result is a string. Otherwise there wouldn’t be a question - Alex Kapustin

(float) with very small numbers will give E notation. Type: 4.343434E-5