PHP - Find the number of zeros in a decimal number

Question

Let\'s say we have 0.00045. I want to find a way to count the number of \"significant\" zeros after the decimal point (3 in this case). I\'ve been trying to implement st

Answer 1

Match the first consecutive zeroes in the mantissa:

$number = 123.0000000240003;

preg_match("/^(0+)/", explode('.', $number)[1], $matches);

echo strlen($matches[0]); // echoes 7