(PHP 4 >= 4.2.0, PHP 5)
floatval — Get float value of a variable
May be any scalar type. You cannot use floatval() on arrays or objects.
The float value of the given variable.
Example #1 floatval() Example
<?php
$var = '122.34343The';
$float_value_of_var = floatval($var);
echo $float_value_of_var; // 122.34343
?>