我的环境是win2000+apache1.3+php4.2
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(最多时达到几千个字符),起初将session.cache_limiter设成nocache时老是
会碰到页面失效的警告,客户一直抱怨,后来我就将session.cache_limiter设
成private或public(两个都试过),可在我的测试系统上(测试系统是window平台,
实际运行系统是Solaris9),却出现session数据丢失的情况,从而造成用户有的功能无法
正常使用.对php不是很懂,还请各位帮帮忙,谢谢!!!以下时php.ini文件Session部份的配置:
[Session]
; Handler used to store/retrieve data.
session.save_handler = files; Argument passed to save_handler. In the case of files, this is the path
; where data files are stored. Note: Windows users have to change this
; variable in order to use PHP's session functions.
; session.save_path = /tmp
; session.save_path = C:\WINNT\tempsession.save_path = E:\PHPSession; Whether to use cookies.
session.use_cookies = 1
; Name of the session (used as cookie name).
session.name = PHPSESSID; Initialize session on request startup.
session.auto_start = 1; Lifetime in seconds of cookie or, if 0, until browser is restarted.
session.cookie_lifetime = 0; The path for which the cookie is valid.
session.cookie_path = /
;session.cookie_path = C:\WINNT\temp; The domain for which the cookie is valid.
session.cookie_domain =; Handler used to serialize data. php is the standard serializer of PHP.
session.serialize_handler = php; Percentual probability that the 'garbage collection' process is started
; on every session initialization.
session.gc_probability = 1; After this number of seconds, stored data will be seen as 'garbage' and
; cleaned up by the garbage collection process.
session.gc_maxlifetime = 1440; Check HTTP Referer to invalidate externally stored URLs containing ids.
; HTTP_REFERER has to contain this substring for the session to be
; considered as valid.
session.referer_check =; How many bytes to read from the file.
session.entropy_length = 0; Specified here to create the session id.
session.entropy_file =;session.entropy_length = 16;session.entropy_file = /dev/urandom; Set to {nocache,private,public} to determine HTTP caching aspects.
session.cache_limiter = nocache; Document expires after n minutes.
session.cache_expire = 1; use transient sid support if enabled by compiling with --enable-trans-sid.
session.use_trans_sid = 1url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeentry"
顺便,session.cookie_path = / 会不会让根目录有点乱?嗬嗬或者你调试时候把cookie禁止了,会有莫名其妙事情出现
不要在php.ini中修改,而要在程序中设置。你或许并无修改php.ini的权限但要注意到如下事实:
session_cache_limiter('private');
后,session将延时一个一个周期session_cache_limiter('public');
后,session可能不被修改通常可用session_cache_limiter("private,must-revalidate");设计好session_start();出现的地方,根本不需要改变session的默认设置
-->或者你调试时候把cookie禁止了,会有莫名其妙事情出现
我觉得session和cookie不一样吧,session是在服务器上保存的,cookie
是在客户端保存的,我在调试时也没把cookie禁止掉。-->设计好session_start();出现的地方,根本不需要改变session的默认设置
我在每个页面中都是将session_start()放在第一行的,不然的话会报错,其实
session中的内容我在程序中从未进行过修改操作,只是在用户登录时,从数据
库中取出数据放到session中而已,以后都是从中取数据的。我在Solaris上没做
过测试(系统在用不能重启(24*7的))。所以不清楚在solaris上是否有这种情况。不管如何明天一定结帖,让大家久等了。
结果跟window上面的一样,还差点转不回去,php的session问题确实好多,不好用,看php版总有人
问session的问题,另外我发现php的数组有时也会发现
有一些怪怪的问题.
/usr/local/lib/php.ini文件内容:
; Handler used to store/retrieve data.
session.save_handler = files; Argument passed to save_handler. In the case of files, this is the path
; where data files are stored. Note: Windows users have to change this
; variable in order to use PHP's session functions.
; As of PHP 4.0.1, you can define the path as:
; session.save_path = "N;/path"
; where N is an integer. Instead of storing all the session files in
; /path, what this will do is use subdirectories N-levels deep, and
; store the session data in those directories. This is useful if you
; or your OS have problems with lots of files in one directory, and is
; a more efficient layout for servers that handle lots of sessions.
; NOTE 1: PHP will not create this directory structure automatically.
; You can use the script in the ext/session dir for that purpose.
; NOTE 2: See the section on garbage collection below if you choose to
; use subdirectories for session storage
session.save_path = /tmp; Whether to use cookies.
session.use_cookies = 1; This option enables administrators to make their users invulnerable to
; attacks which involve passing session ids in URLs; defaults to 0.
; session.use_only_cookies = 1; Name of the session (used as cookie name).
session.name = PHPSESSID; Initialize session on request startup.
session.auto_start = 0; Lifetime in seconds of cookie or, if 0, until browser is restarted.
session.cookie_lifetime = 0; The path for which the cookie is valid.
session.cookie_path = /; The domain for which the cookie is valid.
session.cookie_domain =; Handler used to serialize data. php is the standard serializer of PHP.
session.serialize_handler = php; Define the probability that the 'garbage collection' process is started
; on every session initialization.
; The probability is calculated by using gc_probability/gc_divisor,
; e.g. 1/100 means there is a 1% chance that the GC process starts
; on each request.session.gc_probability = 1
session.gc_divisor = 100; After this number of seconds, stored data will be seen as 'garbage' and
; cleaned up by the garbage collection process.
session.gc_maxlifetime = 1440; NOTE: If you are using the subdirectory option for storing session files
; (see session.save_path above), then garbage collection does *not*
; happen automatically. You will need to do your own garbage
; collection through a shell script, cron entry, or some other method.
; For example, the following script would is the equivalent of
; setting session.gc_maxlifetime to 1440 (1440 seconds = 24 minutes):
; cd /path/to/sessions; find -cmin +24 | xargs rm; PHP 4.2 and less have an undocumented feature/bug that allows you to
; to initialize a session variable in the global scope, albeit register_globals
; is disabled. PHP 4.3 and later will warn you, if this feature is used.
; You can disable the feature and the warning seperately. At this time,
; the warning is only displayed, if bug_compat_42 is enabled.session.bug_compat_42 = 1
session.bug_compat_warn = 1; Check HTTP Referer to invalidate externally stored URLs containing ids.
; HTTP_REFERER has to contain this substring for the session to be
; considered as valid.
session.referer_check =; How many bytes to read from the file.
session.entropy_length = 0; Specified here to create the session id.
session.entropy_file =;session.entropy_length = 16;session.entropy_file = /dev/urandom; Set to {nocache,private,public,} to determine HTTP caching aspects
; or leave this empty to avoid sending anti-caching headers.
session.cache_limiter = nocache; Document expires after n minutes.
session.cache_expire = 180; trans sid support is disabled by default.
; Use of trans sid may risk your users security.
; Use this option with caution.
; - User may send URL contains active session ID
; to other person via. email/irc/etc.
; - URL that contains active session ID may be stored
; in publically accessible computer.
; - User may access your site with the same session ID
; always using URL stored in browser's history or books.
session.use_trans_sid = 0; The URL rewriter will look for URLs in a defined set of HTML tags.
; form/fieldset are special; if you include them here, the rewriter will
; add a hidden <input> field with the info which is otherwise appended
; to URLs. If you want XHTML conformity, remove the form entry.
; Note that all valid entries require a "=", even if no value follows.
url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=,fieldset="