How to Add Commas to Numbers in PHP

How can I add commas to numbers in PHP

from the php manual http://php.net/manual/en/function.number-format.php

I'm assuming you want the english format.

<?php

$number = 1234.56;

// english notation (default)
$english_format_number = number_format($number);
// 1,235

// French notation
$nombre_format_francais = number_format($number, 2, ',', ' ');
// 1 234,56

$number = 1234.5678;

// english notation with a decimal point and without thousands seperator
$english_format_number = number_format($number, 2, '.', '');
// 1234.57

?>

my 2 cents

Add commas as thousands separator and floating point dot in php

Below will output 1,234,567.00

$example = "1234567";
$subtotal =  number_format($example, 2, '.', ',');
echo $subtotal;

Syntax

string number_format ( float $number , int $decimals = 0 , string $dec_point = '.' , string $thousands_sep = ',' )

But I advise you to use money_format which will formats a number as a currency string

Add commas as thousands delimiter in Arabic money number expression

Based on @JellyBean answer

$num = '۱۲۳۴۵۶۷۸۹۰';
$newNum = wordwrap($num , 6 , ',' , true );

This will echo out ۱۲۳,۴۵۶,۷۸۹,۰

First of, why 6? Because The chars uses 2 bytes.
Second, there's still a problem; What we want is this: ۱,۲۳۴,۵۶۷,۸۹۰

Solution

We can reverse it

$num = strrev('۱۲۳۴۵۶۷۸۹۰');
$newNum = strrev(wordwrap($num , 6 , ',' , true ));

echo $newNum;

۱,۲۳۴,۵۶۷,۸۹۰

POC: https://3v4l.org/OVeQQ

Formatting numbers with commas PHP

There is a clear doc for this function:

string number_format ( float $number , int $decimals = 0 , string $dec_point = "." , string $thousands_sep = "," )

http://php.net/manual/de/function.number-format.php

How can I add commas to numbers in PHP (Session Value)

Have a look at the parameters shown here.

<?php echo number_format(($_SESSION["result"]), 3,",", "."); ?>

Adding commas to sql values using php explicitly

In response to a comment that this can be done in sql.

MySQL

Use FORMAT.

For an integer:

SELECT FORMAT(Field, 0);

The second flag is how many numbers after the decimal you want.

For a float with 2 decimal points

SELECT FORMAT(Field, 2);

PHP

This can be accomplished using number_format

From http://php.net/

<?php

$number = 1234.56;

// english notation (default)
$english_format_number = number_format($number);
// 1,235

// French notation
$nombre_format_francais = number_format($number, 2, ',', ' ');
// 1 234,56

$number = 1234.5678;

// english notation without thousands separator
$english_format_number = number_format($number, 2, '.', '');
// 1234.57

?>

To enhance this, number_format tends to do some rounding. So you may want something better if you have floats (but maybe you don't, but if you do) ::

$final = 46000.12;
echo number_format( floor( $final*100 ) / 100, 2 );

Dagon makes a good point that you could also look into money_format

From http://php.net/

$number = 1234.56;
setlocale(LC_MONETARY, 'en_US');
echo money_format('%i', $number) . "\n";
// USD 1,234.56

Need to add comma after every 3 digits using php

Edit:

as another answer suggested, there is a simple way to do this using number_format:

echo number_format(1234); // 1,234

Original answer:

try this str_split

$price = 1234;

$price_text = (string)$price; // convert into a string
$price_text = strrev($price_text); // reverse string
$arr = str_split($price_text, "3"); // break string in 3 character sets

$price_new_text = implode(",", $arr);  // implode array with comma
$price_new_text = strrev($price_new_text); // reverse string back
echo $price_new_text; // will output 1,234