How to parse string to float in PHP

If you want to parse a string to float type then you can use floatval:

float floatval  ( mixed $var  ) - Gets the float value of a string.

<?php
 $var = '122.34343The';
 $float_value_of_var = floatval($var);
 echo $float_value_of_var; // 122.34343
?>

Or you can do a cast with (float):

$rootbeer = (float) $InvoicedUnits;