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Bug #53775 parseCurrency returns 0 instead of false
Submitted: 2011-01-18 09:56 UTC Modified: 2011-01-18 14:01 UTC
Votes:1
Avg. Score:2.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: _coola_ at arcor dot de Assigned:
Status: Not a bug Package: I18N and L10N related
PHP Version: 5.3SVN-2011-01-18 (SVN) OS: win xp
Private report: No CVE-ID: None
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From: _coola_ at arcor dot de
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 [2011-01-18 09:56 UTC] _coola_ at arcor dot de 
Description:
------------
Hi! :)

I think i have found a bug in NumberFormatter.
parseCurrency() returns 0 instead of false in the following test script.

Same Problem with parse().

Test script:
---------------
$fmt=new NumberFormatter('de_DE',NumberFormatter::CURRENCY);

$result=$fmt->parseCurrency('aaa',$currency);
//$result=$fmt->parse('aaa');

// results:
var_dump($result);   // float(0)
var_dump($currency); // string(0) "" 

// no errors!!
var_dump($fmt->getErrorCode());                  // int(0)
var_dump($fmt->getErrorMessage());               // string(12) "U_ZERO_ERROR" 
var_dump(intl_is_failure($fmt->getErrorCode())); // bool(false)

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 [2011-01-18 10:15 UTC] aharvey@php.net
-Package: Unknown/Other Function +Package: I18N and L10N related
 [2011-01-18 14:01 UTC] iliaa@php.net
-Status: Open +Status: Bogus
 [2011-01-18 14:01 UTC] iliaa@php.net 
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

The parseCurrency() expects the 1st parameter to be a float, when given a string 
PHP automatically casts it to float resulting in 0.
 [2011-01-19 17:24 UTC] _coola_ at arcor dot de 
1st parameter has to be a string
http://php.net/manual/en/numberformatter.parsecurrency.php
 [2011-01-25 16:41 UTC] garioch2 at googlemail dot com 
I read the bug report and your reply as well.

According to the respective manual page 

"returns the parsed value or FALSE on error" -> I would expect to get FALSE when trying to parse 'aaa' into any available currency and locale (And the one who wrote the bug report too) ^^

Instead it appears that the parseCurrency method just uses the locale to transform the float number it expects in the String-parameter 
And then simply uses float_val() to convert the string to a real float value.

Thus we get 0 (zero) for trying to parse 'aaa'.

But this makes it hard to differentiate between 
a real Zero and a Zero occuring coz of wrong input-data. And I think the FALSE  would really help in the latter case (as in various string-functions like strpos and so on)

thanks for your time!
 [2011-01-26 12:28 UTC] _coola_ at arcor dot de 
Correct! That´s the problem. Thank you. :)
 
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