note 41895 added to function.floatval

i have a question... so far all the examples just converts something into a float; -casting anything into a float (float)$something -functions to take $something and get only numbers however if you wanted to convert string into a float without modifcation to initial data, how would you do it? Like in java, you can use class libraries to convert string to float. if the string were: 93843string.here, it will display a error msg, because it can not be converted instead of just getting string value. can we do something like that in php? i want to use it for form, to check the input; if it is not correct input then return 1; etc ---- Manual Page -- http://www.php.net/manual/en/function.floatval.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+41895 Delete -- http://master.php.net/manage/user-notes.php?action=delete+41895&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+41895&report=yes Search -- http://master.php.net/manage/user-notes.php