Bug #53667 [Opn->Bgs]: number_format problem in empty string

Edit report at http://bugs.php.net/bug.php?id=53667&edit=1 ID: 53667 Updated by: kalle@php.net Reported by: diego at agudo dot eti dot br Summary: number_format problem in empty string -Status: Open +Status: Bogus Type: Bug Package: *Math Functions Operating System: Debian-5 PHP Version: 5.3.4 Block user comment: N Private report: N New Comment: This is global for the parameter parsing API thats used across all functions within the PHP core. The thing is that "" cannot be converted to a double as there is no value, whereas "0" can be converted to a numeric value, "0" => 0 => (double) 0. You should validate the input before sending it to the function, or alternatively forcing type casting which is an ugly hack but it fixes the problem for you: number_format((double) $x); Previous Comments: ------------------------------------------------------------------------ [2011-01-06 12:59:24] diego at agudo dot eti dot br Description: ------------ The problem occurs in version 5.3.4, the same situation does not create problems in version 5.2.6. Passing an empty string as a parameter is generated an error that the parameter must be of type double the problem does not occur if the same string is not empty. Test script: --------------- Example 01: Code: <? $x = ""; echo "-->". number_format($x); ?> Output: Warning: number_format() expects parameter 1 to be double, string given in /www/htdocs/test.php on line 5 --> Example 02: <? $x = "0"; echo "-->". number_format($x); ?> Output: -->0 Expected result: ---------------- I hope the developers look fondly and fix this problem. Although trivial, many other applications users can also get this problem. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=53667&edit=1