In Php, how to get float value from a mixed string?

Question

I got a string like:

$str = \"CASH55.35inMyPocket\";

I want to get 55.35 only.

I tried:

$str = flo         


        

Answer 1

Modifying @hek2mgl answer to get both float and integer numbers

preg_match('/([0-9]+\.?[0-9].)/', 'CASH55.35inMyPocket', $matches);
$number = (float) $matches[1]; // 55.35

preg_match('/([0-9]+\.?[0-9].)/', 'CASH55inMyPocket', $matches);
$number = (float) $matches[1]; // 55

preg_match('/([0-9]+\.?[0-9].)/', 'Total.CASH55.35inMyPocket', $matches);  //with a dot before number
$number = (float) $matches[1]; // 55.35