Doc #79071 [Opn->Ver]: Undocumented truncation of tempnam() second parameter
Edit report at https://bugs.php.net/bug.php?id=79071&edit=1
ID: 79071
Updated by: cmb@php.net
Reported by: fabienung at hotmail dot fr
Summary: Undocumented truncation of tempnam() second
parameter
-Status: Open
+Status: Verified
Type: Documentation Problem
Package: Filesystem function related
Operating System: Linux
PHP Version: 7.4.1
Block user comment: N
Private report: N
New Comment:
Since this truncation happens as of PHP 5.1.3, in my opinion just
documenting the fact should be sufficient.
Previous Comments:
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[2020-01-06 14:11:30] fabienung at hotmail dot fr
Description:
------------
tempnam() will truncate the second argument after 63 characters
see: https://github.com/php/php-src/blob/bbcfa66e06110d8256595e644378a5358dda3558/ext/standard/file.c#L836-L839
introduced in commit :
https://github.com/php/php-src/commit/4ca3df56d356ed8c3b55695ed588783e3f91378c
Test script:
---------------
var_dump(tempnam('/tmp',
'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbcdefghijklm'));
string(74) "/tmp/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbFkS7ld"
Expected result:
----------------
It should be documented, also maybe either do not truncate or warn if there is a truncation.
Actual result:
--------------
Silent truncation.
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Edit this bug report at https://bugs.php.net/bug.php?id=79071&edit=1
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