How can I have two decimals values even with the whole number using round() function of php
SAMPLE
$number = round(123.456,2); // if i use number format it will not round the decimals so it will print 123.45 not 123.46
$number2 = round(123,2);
echo $number; // => 123.46
echo $number2; // => I want this one to print 123.00
$number2 = number_format(123, 2, '.', '');
Rounding a whole number wont return 2 decimal places. So use number_format(); to make it display them.
Related
I need transform 100 to 1.00, 345 to 3.45 or any number with 3 digits or more to record in db like a decimal.
Don't need add .00, just transform last two numbers in decimal.
I try number_format($num, 2) but is wrong.
It seems, that you want to divide your numbers to 100, so using number_format() with the appropriate $decimal_separator and $thousands_separator is an option:
<?php
echo number_format($num / 100, 2, '.', '');
?>
Since you are converting from an integer to a float, you can achieve this simply by dividing the number by 100.
$input = 100;
$value = floatval($input) / 100;
$value = number_format($value, 2);
echo $value;
You may then use number_format (as you were using before) to force two decimal places after any evenly divided float numbers (such as 100).
Demo: PHP Sandbox Example
Need to round 30.61 to 30.60, Any built-in function for PHP to do this ?
If I understand your desired output correctly, that you only want to round the second decimal point, you can round with 1 decimal presicion, then use numer_format() to ensure you get the correct number of decimals.
$num = 30.61;
echo number_format(round($num, 1), 2);
round() documentation
number_format() documentation
Live demo
you can do this
$num = 3.61;
/*round to nearest decimal place*/
$test_number = round($num,1);
/* ans :3.6
format to 2 decimal place*/
$test_number = sprintf ("%.2f", $test_number);
/* ans : 3.60 */
I am trying to create an ecommerce store and our prices need to fluctuate with the exchange rate for different countries so I'm dealing with a lot of decimal places.
What I want to do is round the original price to the nearest full number (as in they can keep the change). But then I want to format that as a currency with two decimal places.
<?php
$number = 12345.6789;
echo $number; // outputs '12345.6789'
$number = number_format($number,0);
echo $number; // outputs '12,346'
$number = number_format($number,2);
echo $number; // outputs '12.00'
?>
After formatting to no decimal places it starts reading the ',' as the decimal separator instead of the thousands separator and formats that for two decimal places.
It also gives the following error:
A non well formed numeric value encountered in C:\wamp64\www\Lifting365\test.php on line 6
How can I achieve what I am looking for?
As specified in the documentation, number_format returns a string value, you can't reuse it as a number.
Use the function round() to round your number, if you want to round it to the direct upper integer use ceil() instead.
number_format(round(12345.6789), 2);
// apply intval to get the low integer value (for change purposes)
$number = 12345.6789;
echo $number; // outputs '12345.6789'
echo intval($number)."<br/>"; // outputs '12345'
echo number_format(intval($number),0,'.','.'); // outputs '12.345'
echo number_format(intval($number),0,'.',','); // outputs '12,345'
Use round function and then number_format.
// returns 12,346.00
number_format(round(12345.6789), 2);
The function number_format accepts 4 parameters. Per default a point will be used as decimal seperator and comma as thousands seperator (12345.6789 become 12,346 after your first call; as excepted). It's not explicitly documented but number_format also rounds.
http://php.net/manual/de/function.number-format.php
string number_format ( float $number , int $decimals = 0 , string $dec_point = "." , string $thousands_sep = "," )
You are getting an error because you reuse the same variable $number. After your first call to number_format you dont have a float value anymore.
<?php
$number = 12345.6789;
echo $number."<br>"; // outputs 12345.6789
echo number_format($number,0)."<br>"; // outputs 12,346
echo number_format($number,2)."<br>"; // outputs 12,345.68
?>
If you are not sure what is in your variable you can apply floatval to it.
echo number_format(floatval($number),2);
The PHP function that you're looking for is money_format() http://php.net/manual/en/function.money-format.php have a good read through the manual page (including the comments)
$quantity = 20;
$product_rate = 66.79;
$total = $quantity * $product_rate;
echo $total;
Output is showing 1335.8000000000002
is there possible to show 1335.8 using php..?
You can use the number_format() function like this:
$firstNum = 1335.8000000000002;
$number = number_format($firstNum, 1, '.', '');
echo $number;
outputs:
1335.8
more on number_format() here: http://php.net/number-format.
You can also multiply the number by 10, then use intval() to convert it to an integer (that way stripping out the decimals) and then divide by 10 like this:
$firstNum = 1335.8000000000002;
$number = 10 * intval($firstNum)/10;
echo $number;
outputs:
1335.8
Note: when using the methods above there will be no rounding, for rounding you would use something like this:
$number = round($firstNum, 1);
echo $number;
which in this case also outputs:
1335.8
Do you really use these variable values? I'm using PHP7 and the output for your given values is 1335.8. If you do a manual calculation it is the same result. It should be 1335.8. Anyway if you need to roundup the value you can use below.
round($total,1);
Please refer the below link and you will be able to grab more details.
http://php.net/manual/en/function.round.php
Because how floating point numbers work, they cannot represent every numbers exactly, so approximations are made.
The closest representation of 20 is 20, it can represent 20 exactly, but 66.79 for instance is approximated to 66.7900000000000062527760746889, that times 20 is 1335.800000000000125055521493778 that again cannot be represented and is approximated to 1335.80000000000018189894035459.
Depending on how you choose to print this number, it may round different ways, in your case for some reason you decided to print 13 decimal places so it rounded to 1335.8000000000002, but if you print only 1 or 2 decimal places it will print as 1335.8 or 1335.80. Just be mindful about that when printing floating point numbers, you may want to specify how many decimal places are relevant to you. For that, use number_format().
Example:
echo number_format($number, 2); // prints 2 decimal places
You can do this simply using echo echo round($total, 1) instead of doing round($total)
php number round to 2 decimal places not working my number is 0.00000000000000000000001 and I want result as 0.01. I tried php number_format() function php round() function but they didn't work for me.
Just make a simple function that returns either the rounded value or the minimum value you would like...
function round_special($x)
{
if ($x == 0) return 0;
$rounded = round($x, 2);
$minValue = 0.01;
if ($rounded < $minValue) {
return number_format($minValue, 2);
} else {
return number_format($rounded, 2);
}
}
So, results would look like:
$x = 0.00000000000000000000001;
echo round_special($x); // 0.01
echo round_special(0.0001); // 0.01
echo round_special(55); // 55.00
echo round_special(0.6); // 0.06
0.01 is far far greater than 0.00000000000000000000001. You can not round it to 0.01 . 0.006 can be rounded to 0.01 because they are very close to each other.
Number_format() and round() will not work in your case.
This functions adjust the decimals as per original math rules
in your case result will be always 0.00...as .01 will get converts to 0.0