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Bug #29076 error_log(addslashes(string)) double escapes string
Submitted: 2004-07-09 17:24 UTC Modified: 2004-07-11 20:37 UTC
From: ross dot girshick at gmail dot com Assigned:
Status: Not a bug Package: *General Issues
PHP Version: 4.3.7 OS: Redhat Linux 2.4.20-20.9
Private report: No CVE-ID: None
View Developer Edit
 [2004-07-09 17:24 UTC] ross dot girshick at gmail dot com 
Description:
------------
error_log used with addslashes seems to double escape strings.

Other info about my setup:
--------------------------
magic_quotes_gpc	Off	Off
magic_quotes_runtime	Off	Off

Apache Version 	Apache/1.3.31 (Unix) PHP/4.3.7
Apache Release 	10331100
Apache API Version 	19990320
User/Group 	smarter(501)/110
Max Requests 	Per Child: 0 - Keep Alive: on - Max Per Connection: 10000
Timeouts 	Connection: 300 - Keep-Alive: 15
Server Root 	/usr/local/apache
Loaded Modules 	mod_auth_mysql, mod_php4, mod_setenvif, mod_so, mod_headers, mod_auth, mod_access, mod_rewrite, mod_alias, mod_userdir, mod_actions, mod_imap, mod_asis, mod_cgi, mod_dir, mod_autoindex, mod_include, mod_status, mod_negotiation, mod_mime, mod_log_config, mod_env, mod_vhost_alias, http_core

Reproduce code:
---------------
print addslashes(' " ');
error_log(' " ');
error_log(addslashes(' " '));

Expected result:
----------------
code                            output
--                              --
print addslashes(' " ');        \"
error_log(' " ');               "
error_log(addslashes(' " '));   \"

Actual result:
--------------
code                            output
--                              --
print addslashes(' " ');        \"
error_log(' " ');               "
error_log(addslashes(' " '));   \\"   <-- Note the extra '\'

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 [2004-07-11 19:09 UTC] sniper@php.net 
I can not reproduce this with Apache 1.3.28 + PHP 4.3.8-dev.
(latest STABLE snapshot from http://snaps.php.net)

And your script as run as is does not output anything but the single " (rest goes to apache error_log for me, check your error_* settings in php.ini)
 [2004-07-11 20:37 UTC] ross dot girshick at gmail dot com 
Of course the ouput of error_log() goes to the apache error log, that's the whole idea. I don't understand the point of your comment on this.

If it works fine in 4.3.8-dev, then I guess the bug has been fixed or else it's some strange interaction with 4.3.7 and my particular set up. I checked php.ini and there's nothing odd re: the error_* settings. When I have a chance I'll try 4.3.8-dev to verify that this has been fixed.
 
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