If you’re using third-party (not-your-own) scripts and such, prepare to get a-hackin’ away at some code.
[quote]I set this option in .htaccess:
php_value session.cookie_domain .domain.com
It seems like working, but only in IE based browsers. When loggining in Opera or Firefox it doesn’t works on subdomains.[/quote]
Also important: Some browsers (…and third-party scripts/enhancements/toolbars) may be set to prevent/block cookies from crossing subdomains; other than setting up a FAQ (and associated links) to address the specific problem you’re using cookies for, you can’t much help folks what’s got their browsers set in uber-anal-retentive mode.
Not true at Dreamhost.
If it gets puzzling, try putting the following code in the top of some of your problem scripts so’s you can look at the HTML source to track down the problem:
print "<!-- \$_ENV "; print_r($_ENV); print " -->\r";
print "<!-- \$_SESSION "; print_r($_SESSION); print " -->\r";
print "<!-- \$_COOKIE "; print_r($_COOKIE); print " -->\r";
print "<!-- \$_POST "; print_r($_POST); print " -->\r";Good luck.