ereg Deprecated in PHP 5.3.0
There are many files using ereg (eregi, ereg_replace, etc.). These should be replaced with preg, as specified in the PHP manual:
"Note: As of PHP 5.3.0, the regex extension is deprecated in favor of the PCRE extension. Calling this function will issue an E_DEPRECATED notice. See the list of differences for help on converting to PCRE.
Note: preg_match(), which uses a Perl-compatible regular expression syntax, is often a faster alternative to ereg(). "
Perl-compatible extension (PCRE) doc is here:
Differences between ereg and preg are here: