How to get seconds from a timestrong

Question

I like to get the seconds from a string like 11.5 years. Using strtotime() return a negative value

strtotime('11.5 years', 0)

which is explained here

Answer 1

I came up with this solution which works for my application

$value = 11.5;
$unit = 'year'; //day, second, month,...

$integer = floor($value);
$decimal = $value-$integer;

               //get value of full [unit] and at the percentage from the decmail
$delay = strtotime('+'.$integer.' '.$unit, 0)+strtotime('+1 '.$unit, 0)*$decimal

Answer 2

You may try this:

echo strtotime('+11 years 6 months');

Answer 3

echo strtotime('+11 years 6 months');

Fiddle