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Doc Bug #23564 base_convert() ignores last character
Submitted: 2003-05-09 09:22 UTC Modified: 2004-04-01 04:50 UTC
From: jaakkoho at paju dot oulu dot fi Assigned:
Status: Closed Package: Documentation problem
PHP Version: 4.3.2RC3-dev OS: Linux 2.4 (Debian)
Private report: No CVE-ID: None
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From: jaakkoho at paju dot oulu dot fi
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 [2003-05-09 09:22 UTC] jaakkoho at paju dot oulu dot fi 
Both the following commands outputs same value: 
 
base_convert("aaaaaaaaaaa", 36, 10); 
base_convert("aaaaaaaaaab", 36, 10); 
 
output: 37606201097790608 
 
In fact, the last character can be whatever between 0-z, 
and the output is always same. 
 
This bug appears only if strlen($string_to_convert) > 10.

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 [2003-05-15 07:33 UTC] derick@php.net 
Found the problem... the float (internally) reaches maximum precision in the case. Going to try to fix it in some way.
 [2003-05-15 09:10 UTC] derick@php.net 
Okay, this is definitely not trivial to fix and making this a documentation problem instead: base_convert() loses precision on big numbers due to float properties.

Derick
 [2003-09-10 21:15 UTC] hholzgra@php.net 
see also  23563
 [2004-04-01 04:50 UTC] irchtml@php.net 
This bug has been fixed in the documentation's XML sources. Since the
online and downloadable versions of the documentation need some time
to get updated, we would like to ask you to be a bit patient.

Thank you for the report, and for helping us make our documentation better.
 
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