Show a number to two decimal places

Question

What s the correct way to round a PHP string to two decimal places    number    520      It s a string from a database   formatted number   round to 2dp  number    echo  formatted number    The output should be 520 00   How should the round to 2dp   function definition be

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For conditional rounding off ie  show decimal where it s really needed otherwise whole number  123 56    12 56  123 00    123   somenumber   123 56    somenumber   round  somenumber 2    if  somenumber    intval  somenumber          somenumber   intval  somenumber      echo  somenumber     123 56    somenumber   123 00    somenumber   round  somenumber 2    if  somenumber    intval  somenumber          somenumber   intval  somenumber      echo  somenumber     123

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You can use number format     return number format  float  number  2              Example    foo    105   echo number format  float  foo  2                Outputs - gt  105 00   This function returns a string

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Adding to other answers  since number format   will  by default  add thousands separator   To remove this  do this    number   number format  number  2

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Use the PHP number format   function

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You can use the PHP printf or sprintf functions   Example with sprintf    num   2 12  echo sprintf    3f    num     You can run the same without echo as well  Example  sprintf    3f    num    Output   2 120   Alternatively  with printf   echo printf    2f    num     Output   2 124

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number   sprintf   0 2f    numbers      520 89898989 - gt  520 89   This will give you 2 number after decimal

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Use round    use if you are expecting a number in float format only  else use number format   as an answer given by Codemwnci    echo round 520 34345  2        520 34 echo round 520 3  2            520 3 echo round 520  2              520   From the manual      Description   float round float  val    int  precision   0    int  mode   PHP ROUND HALF UP            Returns the rounded value of val to specified precision  number of digits after the decimal point   precision can also be negative or zero  default             Example  1 round   examples   lt  php     echo round 3 4              3     echo round 3 5              4     echo round 3 6              4     echo round 3 6  0           4     echo round 1 95583  2       1 96     echo round 1241757  -3      1242000     echo round 5 045  2         5 05     echo round 5 055  2         5 06   gt        Example  2 mode examples   lt  php     echo round 9 5  0  PHP ROUND HALF UP        10     echo round 9 5  0  PHP ROUND HALF DOWN      9     echo round 9 5  0  PHP ROUND HALF EVEN      10     echo round 9 5  0  PHP ROUND HALF ODD       9      echo round 8 5  0  PHP ROUND HALF UP        9     echo round 8 5  0  PHP ROUND HALF DOWN      8     echo round 8 5  0  PHP ROUND HALF EVEN      8     echo round 8 5  0  PHP ROUND HALF ODD       9   gt

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If you want to use two decimal digits in your entire project  you can define   bcscale 2     Then the following function will produce your desired result    myvalue   10 165445  echo bcadd 0   myvalue      result 10 11   But if you don t use the bcscale function  you need to write the code as follows to get your desired result    myvalue   10 165445  echo bcadd 0   myvalue  2      result 10 11   To know more   BC Math Functions bcscale

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That s the same question I came across today and want to round a number and return float value up to a given decimal place and it must not be string  as returned from number format  the answer is echo sprintf         decimalPlaces    f   round  number   decimalPlaces

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retailPrice   5 989  echo number format floor  retailPrice 100  100 2               It will return 5 98 without rounding the number

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Choose the number of decimals Format commas    An option to trim trailing zeros      Once and for all    function format number  number  dec 0  trim false     if  trim        parts   explode      round  number  dec    1         dec   isset  parts 1     strlen  parts 1     0         formatted   number format  number  dec      return  formatted      Examples  echo format number 1234 5 2 true     returns 1 234 5 echo format number 1234 5 2          returns 1 234 50 echo format number 1234 5            returns 1 235

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Here I get two decimals after the    dot  using a function     function truncate number  number   precision   2            Zero causes issues  and no need to truncate     if  0     int  number            return  number                Are we negative       negative    number   abs  number           Cast the number to a positive to solve rounding      number   abs  number           Calculate precision number for dividing   multiplying      precision   pow 10   precision           Run the math  re-applying the negative value to ensure        returns correctly negative   positive     return floor   number    precision      precision    negative      Results from the above function   echo truncate number 2 56789  1      2 5 echo truncate number 2 56789         2 56 echo truncate number 2 56789  3      2 567  echo truncate number -2 56789  1      -2 5 echo truncate number -2 56789         -2 56 echo truncate number -2 56789  3      -2 567   New Correct Answer  Use the PHP native function bcdiv  echo bcdiv 2 56789  1  1       2 5 echo bcdiv 2 56789  1  2       2 56 echo bcdiv 2 56789  1  3       2 567 echo bcdiv -2 56789  1  1      -2 5 echo bcdiv -2 56789  1  2      -2 56 echo bcdiv -2 56789  1  3      -2 567

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In case you use math equation like I did you can set it like this   math equation  quot x   y quot  x 4 4444 y 5 0000 format  quot   2f quot

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Here s another solution with strtok and str pad    num   520 00 strtok round  num  2                str pad strtok       2   0

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Use the PHP number format   function   For example    num   7234545423  echo number format  num  2     The output will be   7 234 545 423 00

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Alternatively    padded   sprintf   0 2f    unpadded      520 - gt  520 00

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bcdiv  number  1  2     2 varies for digits after the decimal point   This will display exactly two digits after the decimal point   Advantage   If you want to display two digits after a float value only and not for int  then use this

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Number without round   double    21 188624   echo intval  double          substr end explode       double    0  2

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I make my own    decimals   2   number   221 12345   number    number   pow 10   decimals    number   intval  number    number    number   pow 10   decimals

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http   php net manual en function round php  e g   echo round 5 045  2         5 05  echo round 5 055  2         5 06

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Another more exotic way to solve this issue is to use bcadd   with a dummy value for the  right operand of 0    formatted number   bcadd  number  0  2

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round to 2dp is a user-defined function  and nothing can be done unless you posted the declaration of that function   However  my guess is doing this  number format  number  2

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Try    number   1234545454   echo   english format number   number format  number  2      The output will be   1 234 545 454 00

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twoDecNum   sprintf   0 2f   round  number  2      The rounding correctly rounds the number and the sprintf forces it to 2 decimal places if it happens to to be only 1 decimal place after rounding

[php] Show a number to two decimal places

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