php convert string to float and add 2 decimal places code example

Example 1: php float to number format 2

<?php
$number=100000;
echo number_format($number).'<br>';
echo number_format($number, 2).'<br>';
echo number_format($number, 3).'<br>';
echo number_format($number, 2, ',', '.');
?>

Example 2: php float to number format 2

100,000
100,000.00
100,000.000
100.000,00