Answers for "php incert decimal always 00"

php 3 digit decimal

return number_format((float)$number, 2, '.', '');

1.0E-6 to decimal in php

<?php
//Use the exemple below to convert Scientific Notation to float/decimal on PHP:

  echo sprintf('%f', floatval('-1.0E-5'));//default 6 decimal places
  echo sprintf('%.8f', floatval('-1.0E-5'));//force 8 decimal places
  echo rtrim(sprintf('%f',floatval(-1.0E-5)),'0');//remove trailing zeros

?>