number_format()

[TheServant]

I have realized something which is going to be a headache in the rest of my current project. I don't know how I have not come across this before but let me show you an example:

$x = number_format( 10000 );
$y = 3;
echo( $x*$y );

You would expect 30,000 right? Because the first number format makes that number 10,000 it is now a string (I think) and when operated upon, it converts it to a number as if it were 10.000 (ie just 10).

How can I get around this? Am I going to have to double up on all my variables and only number_format them after they are 100% done with?

[Dormilich]

the string "10,000" is cut before the comma while conversion back to number.

[TheServant]

Yeah, well in Australia we're the opposite. How can I change that?

[Dormilich]

sorry, but the locale isn't used in number_format().... (but in some other *_format() functions). corrected that (read again).

[Markus]

number_format() returns a string. So, best way to go about this, is to have your integer in it's own variable $x and then have it's formatted version in another variable $x_formatted.

[TheServant]

OK, so is there a way to change it so that it recognises 10,000 as 10000? Changing something in the php.ini file? I have been trying to search about changing the locale but nothing yet about php.ini?

[TheServant]

@Markus
Bugger, I really didn't want to do it that way. Thanks for your help.

[Dormilich]

@TheServant
remove any non-digits and non-commas from the string and the string-number conversion should run smoothly.

or use Markus' way

[TheServant]

Unfortunately what I will have to do is format them as they are echoed, which is just cramping my php/html separation :(

[Dormilich]

why that (don't understand)?

[TheServant]

Well instead of making another (formatted) variable for each variable I need to format (most of them), it's easier to just format them as they come out.

$x = 10000;
$y = 3;
$z = $x * $y;
echo( number_format($x) . " " . number_format($z) );

Compared to:

$x = 10000;
$x_formatted = number_format($x);
$y = 3;
$z = $x * $y;
$z_formatted = number_format($z);
echo( $x . " " . $z );

[Dormilich]

some speed-up:

echo number_format($x), " ", number_format($z);

[TheServant]

Really? I have seen that before but I have always joined strings with "."? That's definitely faster?

[Dormilich]

the point there is: with the commas, you dont need to do the string concatenation thus saving time an output (the Zero bytes). see PHP Performance

[TheServant]

Makes sense. Thanks for the tip (and the link)... Really gtg bed. Thanks for the chat guys.

[Markus]

@Dormilich
because PHP allows for function style arguments in echo() - only echo, though. Not print().

Good night.

- Mark.

[devsusen]

@Dormilich
Oh lovely options. I must put this into my codeing habits. Thank for the information. :)

[sksmith]

The number_format() function formats a number with grouped thousands.
Example
<?php
echo number_format("1000000");
echo "<br />";
echo number_format("1000000",2);
echo "<br />";
echo number_format("1000000",2,",",".");
?>

you can find more easy solution here
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thanks