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Bug #45472 Call to undefined function is_binary() !!!!
Submitted: 2008-07-09 23:04 UTC Modified: 2008-07-09 23:24 UTC
From: argreway at gmail dot com Assigned:
Status: Not a bug Package: *General Issues
PHP Version: 5.2.6 OS: Linux RedHat 5
Private report: No CVE-ID: None
 [2008-07-09 23:04 UTC] argreway at gmail dot com
Description:
------------
The PHP documentation describes a function is_binary() at http://php.interec.es/manual/en/function.is-binary.php that does not exist.  I have tried PHP 4 and 5 on different OS's and all return the same error message: PHP Fatal error:  Call to undefined function is_binary() in /home/greway/test.php on line 2.  I have downloaded the latest PHP 5.2.6 source and grep'ed for is_binary to find that there is not even a mention of this function in the source code.  Am I the only one to every try and use this function?  Or am I doin somthing wrong.

Reproduce code:
---------------
<?php
if (is_binary(1001))
{
echo "Yes";
} else {
echo "No";
}
?>


Expected result:
----------------
Print "Yes"

Actual result:
--------------
PHP Fatal error:  Call to undefined function is_binary() in /home/greway/test.php on line 2

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 [2008-07-09 23:24 UTC] johannes@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 documentation says "(No version information available, might be only in CVS)" - it'S a PHP 6 feature. And no it'S not about binary numbers but binary strings (compared to unicode strings, which are a PHP 6 feature)
 
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