PHP Rouding 44947 to 44900

Question

I would like to round the the lowest digit of this integer examples:

1940   > 1900
104942 > 104900
44947  > 44900

I was trying using :

round( 44947, -1 )    >   44950
round( 44945, -2 )    >   45000

Any ideas?

Possible duplicate of [PHP: show a number to 2 decimal places](https://stackoverflow.com/questions/4483540/php-show-a-number-to-2-decimal-places) — Ali, Jun 16 '17 at 06:29
What PHP version are you using? `round(44947, -2)` most definitely returns 44900. — Mureinik, Jun 16 '17 at 06:31
@HagenvonEitzen No, I tried round(44947, -2) and it returns 45000. round(44947, -1) returns 44950. — Igor O, Jun 16 '17 at 06:34
[round to hundred , thousand and so on](https://stackoverflow.com/q/43932648/6521116) — LF00, Jun 16 '17 at 06:43
[php round 2e decimal to 0 or 5](https://stackoverflow.com/a/40783574/6521116) — LF00, Jun 16 '17 at 06:45
Possible duplicate of [php round 2e decimal to 0 or 5](https://stackoverflow.com/a/40783574/6521116) — LF00, Jun 16 '17 at 06:45

Nigel Ren · Accepted Answer · 2017-06-16T06:38:59.450

1

Use floor

echo floor(1940/100)*100;

Round will round it - so .6 becomes 1, floor rounds off, so .6 becomes 0.
So...

echo floor(1960/100)*100;
echo round(1960,-2);

will give 1900 and 2000

Unfortunately you can't use the same thing as round and specify a number of DP's, so the /100*100 does that job.

edited Jun 16 '17 at 06:38

answered Jun 16 '17 at 06:33

Nigel Ren

score 0 · Answer 2 · answered Jun 16 '17 at 06:33

0

You have to round up to two digits to get the desired result, check this

$var=44947;
echo round($var,-2);

answered Jun 16 '17 at 06:33

RAUSHAN KUMAR

score 0 · Answer 3 · answered Jun 16 '17 at 06:35

0

you can round up to any number.in this code as you mention round to floor up to range of 100

$num=44947;
$num=floor($num/100)*100;
var_dump($num);

answered Jun 16 '17 at 06:35

Piyush Kumar

score 0 · Answer 4 · answered Jun 16 '17 at 06:37

0

 round( 104942 , -2 , PHP_ROUND_HALF_DOWN);

mode Use one of the following constants to specify the mode in which rounding occurs.

answered Jun 16 '17 at 06:37

iwaduarte

score -2 · Answer 5 · answered Jun 16 '17 at 06:29

-2

Wouldn't round(x/100)*100 do the trick?

answered Jun 16 '17 at 06:29

Eagle

5 Answers5