PHP number: decimal point visible only if needed
PhpStringAutomationIntegerPhp Problem Overview
I'd like to know if exists some function to automatically format a number by it's decimal, so if I have:
<?php
// $sql_result["col_number"] == 1,455.75
number_format ($sql_result["col_number"], 2, ".", "");
// will return 1455.75
// $sql_result["col_number"] == 1,455.00
number_format ($sql_result["col_number"], 2, ".", "");
// could I get 1455 instead of 1455.00?
?>
so my answer is if does exist some way to remove the decimals if I have DECIMAL data forma in my DB only when it's round?
Or shoud I do something like that?
<?php
// $sql_result["col_number"] == 1,455.00
str_replace(".00", "", (string)number_format ($sql_result["col_number"], 2, ".", ""));
// will return 1455
?>
Php Solutions
Solution 1 - Php
floatval or simply casting to float
php > echo floatval(7.00);
7
php > echo floatval(2.30);
2.3
php > echo floatval(1.25);
1.25
php > echo floatval(1.125);
1.125
php > echo (float) 7.00;
7
php > echo (float) 2.30;
2.3
php > echo (float) 1.25;
1.25
php > echo (float) 1.125;
1.125
Solution 2 - Php
I actually think that your workaround is as good as any. It's simple and clear, and there's really no point talking about performance here, so just go for it.
Solution 3 - Php
As Emil says yours are good. But if you want to remove 0 from e.g. 7.50 too, I've got a suggestion, rtrim():
<?php
// if $sql_result["col_number"] == 1,455.50
rtrim(rtrim(number_format($sql_result["col_number"], 2, ".", ""), '0'), '.');
// will return 1455.5
?>
Solution 4 - Php
You could also use rtrim(), which would remove excess 0s, in the case where you might want to keep one decimal place but not the excess zeros. (For example, 4.50 becomes 4.5.) Also allows you to change the number of decimal places from 2 to any other number.
rtrim(rtrim((string)number_format($value, 2, ".", ""),"0"),".");
// 4.00 -> 4
// 4.50 -> 4.5
// 4.54000000 -> 4.54 (if you're doing more decimal places)
Solution 5 - Php
Actually I think the cleanest way I can think of to do this for someone that just did a search looking for this sort of thing is to do this:
( number_format ($sql_result["col_number"], 2) * 100 ) / 100;
Solution 6 - Php
I've been accused of doing something like this:
floatval($foo) == intval($foo) ? number_format($foo) : number_format($foo,2);
Solution 7 - Php
Mine since most quantity or pieces do not require decimal, this function will only show decimal when needed.
str_replace(".00", "", number_format($this->pieces, 2));
Solution 8 - Php
If you are targeting US currency I like to use this method:
function moneyform($number, $symbol = true) {
return str_replace(".00", "", money_format(($symbol? '%.2n' : "%!n"), $number));
}
moneyform(1300999);
-->$1,300,999
moneyform(2500.99);
-->$2,500.99
moneyform(2500.99, false);
-->2,500.99
Solution 9 - Php
Warren.S answer helped me out. I didn't need the number_format function, so I just did this
$value=$value-0;
But in the OP's case, he needs number_format to remove the commas. So this would work for him
$value=number_format ($sql_result["col_number"], 2, ".", "")-0;
Solution 10 - Php
Since I could not find a flexible solution I wrote a simple function to get the best result:
function getValueFormattedWithMinimalDecimals($value, $max_decimals = 2, $dec_point = ',', $thousands_sep = '') {
$bestNumberOfDecimals = -1;
$decimal = 0;
while ($decimal <= $max_decimals) {
$bestNumberOfDecimals = $decimal;
$valueDecimals = number_format($value, $decimal);
if (floatval($value) == $valueDecimals) {
break;
}
$decimal++;
}
if($bestNumberOfDecimals > 0 && number_format($value, $bestNumberOfDecimals) == number_format($value, 0)) {
$bestNumberOfDecimals = 0;
}
return number_format($value, $bestNumberOfDecimals, $dec_point, $thousands_sep);
}
Solution 11 - Php
What about
number_format($value,2) - 0;