PHP Deprecated: Function eregi() is deprecated

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As already mentioned on squirrelmail-users, we recently moved our
SquirrelMail installation from Debian Squeeze to Wheezy, which implies a
move from PHP 5.3 to PHP 5.4.

When using the "add_address" plugin (1.0.3, which is the most recent I
could find), I see the following message in the error log, which may or
may not have been there with previous PHP version as well:

"""
PHP Deprecated:  Function eregi() is deprecated in
/home/webmail/src/squirrelmail/plugins/add_address/functions.php on line
718, referer: [...]
"""

Well, yes, eregi() is deprecated. So I propose the following change,
which seems to work for me:

--- a/plugins/add_address/functions.php
+++ b/plugins/add_address/functions.php
@@ -715,7 +715,7 @@ function aa_validate_email($email, $verify)

    // check formatting
    //
-   if (!eregi('^' . $Email_RegExp_Match . '$', $email))
+   if (!preg_match('/^' . addcslashes($Email_RegExp_Match, '/') .
'$/i', $email))
       return FALSE;


Is this correct? Any caveats regarding this solution?

Mit freundlichem Gru=C3=9F,
J=C3=BCrgen Nickelsen.

--=20
<[email protected]> Tel +49.30.838-50740 Fax -450740
Zentraleinrichtung fuer Datenverarbeitung, Central Systems (Unix)
Freie Universitaet Berlin, Fabeckstrasse 32, 14195 Berlin, DE


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------------------------------------------------------------------------------
New Year. New Location. New Benefits. New Data Center in Ashburn, VA.
GigeNET is offering a free month of service with a new server in Ashburn.
Choose from 2 high performing configs, both with 100TB of bandwidth.
Higher redundancy.Lower latency.Increased capacity.Completely compliant.
http://p.sf.net/sfu/gigenet
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