How can I set default input value to 0.00 in php?

Question

Possible Duplicate:
PHP: show a number to 2 decimal places

How can I format an input number to be 0.00 if it has not any value? I tried (double) but it prints 0 only.

Input to what? Database or display? [`number_format()`](http://us3.php.net/manual/en/function.number-format.php) is used to format for display. — Michael Berkowski, Oct 11 '12 at 19:52

score 3 · Accepted Answer · answered Oct 11 '12 at 19:52

3

Here you go :)

echo number_format($var,2);

answered Oct 11 '12 at 19:52

raidenace

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score 1 · Answer 2 · answered Oct 11 '12 at 19:52

1

If you want it to print specific no. of decimal points, use number_format.

  $float_var = number_format($var, 2);

answered Oct 11 '12 at 19:52

Teena Thomas

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1

Casting to float won't help. If `$var` has no value, at best you'll get `0`. Not `0.00`. – cHao Oct 11 '12 at 19:53

Drose · Answer 3 · 2012-10-11T20:01:59.473

1

$var = number_format($number, 2, '.', '');

This forces 2 points after the decimal, sets the decimal as a period. You can also forego the last two as it defaults to it;

Note: The third value is your decimal separator, the fourth value is the thousandths separator.

$var = number_format($number, 2);

edited Oct 11 '12 at 20:01

answered Oct 11 '12 at 19:56

Drose

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5

Ewerton · Answer 4 · 2012-10-17T13:50:50.557

0

if you are trying to format the value i sugest you to use meioMask pluging. So you define your field as number and the pluging do the trick, even if you set "0" for the value

edited Oct 17 '12 at 13:50

answered Oct 11 '12 at 19:53

Ewerton

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score 0 · Answer 5 · answered Oct 11 '12 at 20:07

0

For direct output:

  printf('%0.2f',$var);

Output into variable:

  $outVar = sprintf('%0.2f',$var);

This statemant casts $var type to float and prints with 2 decimal signs

answered Oct 11 '12 at 20:07

SlyChan

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score 0 · Answer 6 · answered Oct 11 '12 at 20:15

maybe you should check it first if the value is not set

if(!isset($variableName))
{
   // then set
   $variableName = "0.00"; // => string

   //or like this
   $variableName = number_format(0,2); // => this result is also string
}
echo "value: ",$variableName;

result

0.00

How can I set default input value to 0.00 in php?

6 Answers6