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<!DOCTYPE html><html><body>​<?php$a = "1234.56789";echo doubleval($a) . "<br>";​$b = "1234.56789Hello";echo doubleval($b) . "<br>";​$c = "Hello1234.56789";echo doubleval($c) . "<br>";?>​</body>​<!-- Mirrored from www.w3schools.com/php/phptryit.asp?filename=tryphp_func_var_doubleval by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:22:59 GMT --></html>​