Home > Archive > PHP Questions and Answers > April 2007 > Re: [PHP-DEV] Re: [fw-general] Re: [PHP-DEV] ZF 0.8.0 Unit Tests
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Re: [PHP-DEV] Re: [fw-general] Re: [PHP-DEV] ZF 0.8.0 Unit Tests
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| Sebastian Nohn 2007-04-17, 6:57 pm |
| Dmitry Stogov wrote:
> It is bad practice to use echo $float or var_dump($float)
> because they depends on php.ini settings.
> You should use printf() of number_format() for deterministic result.
<?php
$a = 6900000000;
$b = $a."";
printf("%d", $a); echo "\n";
printf("%d", $b); echo "\n";
?>
PHP 5.2.1:
-1689934592
2147483647
PHP 5.2.2:
-1689934592
6
- Sebastian
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| Antony Dovgal 2007-04-17, 6:57 pm |
| On 04/17/2007 10:16 PM, Sebastian Nohn wrote:
> Dmitry Stogov wrote:
>
<?php
$a = 6900000000;
$b = $a.""; <-------------- that's the very same mistake
printf("%d", $a); echo "\n";
printf("%d", $b); echo "\n";
?>
You're converting float to string and THEN trying to output as integer.
My patch returns the old behaviour, though you're code is still wrong.
[color=darkred]
> PHP 5.2.2:
>
> -1689934592
> 6
#php -r 'printf("%d", 6900000000);'
-1689934592
#php -r 'printf("%d", "6900000000");'
2147483647
#php -v
PHP 5.2.2RC1 (cli) (built: Apr 16 2007 10:01:11)
--
Wbr,
Antony Dovgal
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