php.ini是PHP的初始化配置文件，该文件下内容非常多，进行个性化配置并不方便，所以在进行LNMP环境搭建时我们并没有完全使用它，只使用了其中默认开启的部分配置（该部分配置必须保留，所以PHP配置
php.ini是PHP的初始化配置文件，该文件下内容非常多，进行个性化配置并不方便，所以在进行LNMP环境搭建时我们并没有完全使用它，只使用了其中默认开启的部分配置（该部分配置必须保留，所以PHP配置文件目录下必须有该文件），那么，该文件下到底都包含什么内容呢？小白出于好奇，整理如下：
官方原文：
; 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;; The file storage module creates files using mode 600 by default.; You can change that by using;; session.save_path = "N;MODE;/path";; where MODE is the octal representation of the mode. Note that this; does not overwrite the process's umask.; http://php.net/session.save-path;session.save_path = "/tmp"; Whether to use strict session mode.; Strict session mode does not accept uninitialized session ID and regenerate; session ID if browser sends uninitialized session ID. Strict mode protects; applications from session fixation via session adoption vulnerability. It is; disabled by default for maximum compatibility, but enabling it is encouraged.; https://wiki.php.net/rfc/strict_sessionssession.use_strict_mode = 0; Whether to use cookies.; http://php.net/session.use-cookiessession.use_cookies = 1; http://php.net/session.cookie-secure;session.cookie_secure =; This option forces PHP to fetch and use a cookie for storing and maintaining; not the be-all and end-all of session hijacking defense, but it's a good start.; http://php.net/session.use-only-cookiessession.use_only_cookies = 1; Name of the session (used as cookie name).; http://php.net/session.namesession.name = PHPSESSID; Initialize session on request startup.; http://php.net/session.auto-startsession.auto_start = 0; Lifetime in seconds of cookie or, if 0, until browser is restarted.; http://php.net/session.cookie-lifetimesession.cookie_lifetime = 0; The path for which the cookie is valid.; http://php.net/session.cookie-pathsession.cookie_path = /; The domain for which the cookie is valid.; http://php.net/session.cookie-domainsession.cookie_domain =; http://php.net/session.cookie-httponlysession.cookie_httponly =; Handler used to serialize data. php is the standard serializer of PHP.; http://php.net/session.serialize-handlersession.serialize_handler = php; Defines the probability that the 'garbage collection' process is started; on every session initialization. The probability is calculated by using; gc_probability/gc_divisor. Where session.gc_probability is the numerator; and gc_divisor is the denominator in the equation. Setting this value to 1; when the session.gc_divisor value is 100 will give you approximately a 1% chance; the gc will run on any give request.; Default Value: 1; Development Value: 1; Production Value: 1; http://php.net/session.gc-probabilitysession.gc_probability = 1; Defines the probability that the 'garbage collection' process is started on every; session initialization. The probability is calculated by using the following equation:; gc_probability/gc_divisor. Where session.gc_probability is the numerator and; session.gc_divisor is the denominator in the equation. Setting this value to 1; when the session.gc_divisor value is 100 will give you approximately a 1% chance; the gc will run on any give request. Increasing this value to 1000 will give you; a 0.1% chance the gc will run on any give request. For high volume production servers,; this is a more efficient approach.; Default Value: 100; Development Value: 1000; Production Value: 1000; http://php.net/session.gc-divisorsession.gc_divisor = 1000; http://php.net/session.gc-maxlifetimesession.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):; find /path/to/sessions -cmin +24 -type f | xargs rm; 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.; http://php.net/session.referer-checksession.referer_check =; How many bytes to read from the file.; http://php.net/session.entropy-length;session.entropy_length = 32; Specified here to create the session id.; http://php.net/session.entropy-file; Defaults to /dev/urandom; If neither are found at compile time, the default is no entropy file.; On windows, setting the entropy_length setting will activate the; Windows random source (using the CryptoAPI);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.; http://php.net/session.cache-limitersession.cache_limiter = nocache; Document expires after n minutes.; http://php.net/session.cache-expiresession.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 publicly accessible computer.; - User may access your site with the same session ID; always using URL stored in browser's history or bookmarks.; http://php.net/session.use-trans-sidsession.use_trans_sid = 0; Select a hash function for use in generating session ids.; Possible Values; 0 (MD5 128 bits); 1 (SHA-1 160 bits); This option may also be set to the name of any hash function supported by; the hash extension. A list of available hashes is returned by the hash_algos(); function.; http://php.net/session.hash-functionsession.hash_function = 0; Define how many bits are stored in each character when converting; the binary hash data to something readable.; Possible values:; 4 (4 bits: 0-9, a-f); 5 (5 bits: 0-9, a-v); 6 (6 bits: 0-9, a-z, A-Z, "-", ","); Default Value: 4; Development Value: 5; Production Value: 5; http://php.net/session.hash-bits-per-charactersession.hash_bits_per_character = 5; 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.; Default Value: "a=href,area=href,frame=src,form=,fieldset="; Development Value: "a=href,area=href,frame=src,input=src,form=fakeentry"; Production Value: "a=href,area=href,frame=src,input=src,form=fakeentry"; http://php.net/url-rewriter.tagsurl_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeentry"; Enable upload progress tracking in $_SESSION; Default Value: On; Development Value: On; Production Value: On; http://php.net/session.upload-progress.enabled;session.upload_progress.enabled = On; Cleanup the progress information as soon as all POST data has been read; (i.e. upload completed).; Default Value: On; Development Value: On; Production Value: On; http://php.net/session.upload-progress.cleanup;session.upload_progress.cleanup = On; A prefix used for the upload progress key in $_SESSION; Default Value: "upload_progress_"; Development Value: "upload_progress_"; Production Value: "upload_progress_"; http://php.net/session.upload-progress.prefix;session.upload_progress.prefix = "upload_progress_"; The index name (concatenated with the prefix) in $_SESSION; containing the upload progress information; Default Value: "PHP_SESSION_UPLOAD_PROGRESS"; Development Value: "PHP_SESSION_UPLOAD_PROGRESS"; Production Value: "PHP_SESSION_UPLOAD_PROGRESS"; http://php.net/session.upload-progress.name;session.upload_progress.name = "PHP_SESSION_UPLOAD_PROGRESS"; How frequently the upload progress should be updated.; Given either in percentages (per-file), or in bytes; Default Value: "1%"; Development Value: "1%"; Production Value: "1%"; http://php.net/session.upload-progress.freq;session.upload_progress.freq = "1%"; The minimum delay between updates, in seconds; Default Value: 1; Development Value: 1; Production Value: 1; http://php.net/session.upload-progress.min-freq;session.upload_progress.min_freq = "1"[MSSQL]; Allow or prevent persistent links.mssql.allow_persistent = On; Maximum number of persistent links. -1 means no limit.mssql.max_persistent = -1; Maximum number of links (persistent+non persistent). -1 means no limit.mssql.max_links = -1; Minimum error severity to display.mssql.min_error_severity = 10; Minimum message severity to display.mssql.min_message_severity = 10; Compatibility mode with old versions of PHP 3.0.mssql.compatibility_mode = Off; Connect timeout;mssql.connect_timeout = 5; Query timeout;mssql.timeout = 60; Valid range 0 - 2147483647. Default = 4096.;mssql.textlimit = 4096; Valid range 0 - 2147483647. Default = 4096.;mssql.textsize = 4096; Limits the number of records in each batch. 0 = all records in one batch.;mssql.batchsize = 0; Specify how datetime and datetim4 columns are returned; On => Returns data converted to SQL server settings; Off => Returns values as YYYY-MM-DD hh:mm:ss;mssql.datetimeconvert = On; Use NT authentication when connecting to the servermssql.secure_connection = Off; Specify max number of processes. -1 = library default; msdlib defaults to 25; FreeTDS defaults to 4096;mssql.max_procs = -1; Specify client character set.; If empty or not set the client charset from freetds.conf is used; This is only used when compiled with FreeTDS;mssql.charset = "ISO-8859-1"[Assertion]; Assert(expr); active by default.; http://php.net/assert.active;assert.active = On; Issue a PHP warning for each failed assertion.; http://php.net/assert.warning;assert.warning = On; Don't bail out by default.; http://php.net/assert.bail;assert.bail = Off; User-function to be called if an assertion fails.; http://php.net/assert.callback;assert.callback = 0; Eval the expression with current error_reporting(). Set to true if you want; error_reporting(0) around the eval().; http://php.net/assert.quiet-eval;assert.quiet_eval = 0[COM]; path to a file containing GUIDs, IIDs or filenames of files with TypeLibs; http://php.net/com.typelib-file;com.typelib_file =; allow Distributed-COM calls; http://php.net/com.allow-dcom;com.allow_dcom = true; autoregister constants of a components typlib on com_load(); http://php.net/com.autoregister-typelib;com.autoregister_typelib = true; register constants casesensitive; http://php.net/com.autoregister-casesensitive;com.autoregister_casesensitive = false; show warnings on duplicate constant registrations; http://php.net/com.autoregister-verbose;com.autoregister_verbose = true; The default character set code-page to use when passing strings to and from COM objects.; Default: system ANSI code page;com.code_page=[mbstring]; language for internal character representation.; This affects mb_send_mail() and mbstrig.detect_order.; http://php.net/mbstring.language;mbstring.language = Japanese; Use of this INI entry is deprecated, use global internal_encoding instead.; internal/script encoding.; Some encoding cannot work as internal encoding. (e.g. SJIS, BIG5, ISO-2022-*); If empty, default_charset or internal_encoding or iconv.internal_encoding is used.; The precedence is: default_charset < internal_encoding < iconv.internal_encoding;mbstring.internal_encoding =; Use of this INI entry is deprecated, use global input_encoding instead.; http input encoding.; mbstring.encoding_traslation = On is needed to use this setting.; If empty, default_charset or input_encoding or mbstring.input is used.; The precedence is: default_charset < intput_encoding < mbsting.http_input; http://php.net/mbstring.http-input;mbstring.http_input =; Use of this INI entry is deprecated, use global output_encoding instead.; http output encoding.; mb_output_handler must be registered as output buffer to function.; If empty, default_charset or output_encoding or mbstring.http_output is used.; The precedence is: default_charset < output_encoding < mbstring.http_output; To use an output encoding conversion, mbstring's output handler must be set; otherwise output encoding conversion cannot be performed.; http://php.net/mbstring.http-output;mbstring.http_output =; enable automatic encoding translation according to; mbstring.internal_encoding setting. Input chars are; converted to internal encoding by setting this to On.; Note: Do _not_ use automatic encoding translation for; portable libs/applications.; http://php.net/mbstring.encoding-translation;mbstring.encoding_translation = Off; automatic encoding detection order.; "auto" detect order is changed according to mbstring.language; http://php.net/mbstring.detect-order;mbstring.detect_order = auto; substitute_character used when character cannot be converted; one from another; http://php.net/mbstring.substitute-character;mbstring.substitute_character = none; overload(replace) single byte functions by mbstring functions.; mail(), ereg(), etc are overloaded by mb_send_mail(), mb_ereg(),; etc. Possible values are 0,1,2,4 or combination of them.; For example, 7 for overload everything.; 0: No overload; 1: Overload mail() function; 2: Overload str*() functions; 4: Overload ereg*() functions; http://php.net/mbstring.func-overload;mbstring.func_overload = 0; enable strict encoding detection.; Default: Off;mbstring.strict_detection = On; This directive specifies the regex pattern of content types for which mb_output_handler(); is activated.; Default: mbstring.http_output_conv_mimetype=^(text/|application/xhtml/+xml);mbstring.http_output_conv_mimetype=[gd]; Tell the jpeg decode to ignore warnings and try to create; a gd image. The warning will then be displayed as notices; disabled by default; http://php.net/gd.jpeg-ignore-warning;gd.jpeg_ignore_warning = 0[exif]; Exif UNICODE user comments are handled as UCS-2BE/UCS-2LE and JIS as JIS.; With mbstring support this will automatically be converted into the encoding; given by corresponding encode setting. When empty mbstring.internal_encoding; is used. For the decode settings you can distinguish between motorola and; intel byte order. A decode setting cannot be empty.; http://php.net/exif.encode-unicode;exif.encode_unicode = ISO-8859-15; http://php.net/exif.decode-unicode-motorola;exif.decode_unicode_motorola = UCS-2BE; http://php.net/exif.decode-unicode-intel;exif.decode_unicode_intel = UCS-2LE; http://php.net/exif.encode-jis;exif.encode_jis =; http://php.net/exif.decode-jis-motorola;exif.decode_jis_motorola = JIS; http://php.net/exif.decode-jis-intel;exif.decode_jis_intel = JIS[Tidy]; The path to a default tidy configuration file to use when using tidy; http://php.net/tidy.default-config;tidy.default_config = /usr/local/lib/php/default.tcfg; Should tidy clean and repair output automatically?; WARNING: Do not use this option if you are generating non-html content; such as dynamic images; http://php.net/tidy.clean-outputtidy.clean_output = Off[soap]; Enables or disables WSDL caching feature.; http://php.net/soap.wsdl-cache-enabledsoap.wsdl_cache_enabled=1; Sets the directory name where SOAP extension will put cache files.; http://php.net/soap.wsdl-cache-dirsoap.wsdl_cache_dir="/tmp"; (time to live) Sets the number of second while cached file will be used; instead of original one.; http://php.net/soap.wsdl-cache-ttlsoap.wsdl_cache_ttl=86400; Sets the size of the cache limit. (Max. number of WSDL files to cache)soap.wsdl_cache_limit = 5[sysvshm]; A default size of the shared memory segment;sysvshm.init_mem = 10000[ldap]; Sets the maximum number of open links or -1 for unlimited.ldap.max_links = -1[mcrypt]; For more information about mcrypt settings see http://php.net/mcrypt-module-open; Directory where to load mcrypt algorithms; Default: Compiled in into libmcrypt (usually /usr/local/lib/libmcrypt);mcrypt.algorithms_dir=; Directory where to load mcrypt modes; Default: Compiled in into libmcrypt (usually /usr/local/lib/libmcrypt);mcrypt.modes_dir=[dba];dba.default_handler=[opcache]; Determines if Zend OPCache is enabled;opcache.enable=0; Determines if Zend OPCache is enabled for the CLI version of PHP;opcache.enable_cli=0; The OPcache shared memory storage size.;opcache.memory_consumption=64; The amount of memory for interned strings in Mbytes.;opcache.interned_strings_buffer=4; The maximum number of keys (scripts) in the OPcache hash table.; Only numbers between 200 and 100000 are allowed.;opcache.max_accelerated_files=2000; The maximum percentage of "wasted" memory until a restart is scheduled.;opcache.max_wasted_percentage=5; When this directive is enabled, the OPcache appends the current working; directory to the script key, thus eliminating possible collisions between; files with the same name (basename). Disabling the directive improves; performance, but may break existing applications.;opcache.use_cwd=1; When disabled, you must reset the OPcache manually or restart the; webserver for changes to the filesystem to take effect.;opcache.validate_timestamps=1; How often (in seconds) to check file timestamps for changes to the shared; memory storage allocation. ("1" means validate once per second, but only; once per request. "0" means always validate);opcache.revalidate_freq=2; Enables or disables file search in include_path optimization;opcache.revalidate_path=0; If disabled, all PHPDoc comments are dropped from the code to reduce the; size of the optimized code.;opcache.save_comments=1; If disabled, PHPDoc comments are not loaded from SHM, so "Doc Comments"; may be always stored (save_comments=1), but not loaded by applications; that don't need them anyway.;opcache.load_comments=1; If enabled, a fast shutdown sequence is used for the accelerated code;opcache.fast_shutdown=0; Allow file existence override (file_exists, etc.) performance feature.;opcache.enable_file_override=0; A bitmask, where each bit enables or disables the appropriate OPcache; passes;opcache.optimization_level=0xffffffff;opcache.inherited_hack=1;opcache.dups_fix=0; The location of the OPcache blacklist file (wildcards allowed).; Each OPcache blacklist file is a text file that holds the names of files; that should not be accelerated. The file format is to add each filename; to a new line. The filename may be a full path or just a file prefix; (i.e., /var/www/x blacklists all the files and directories in /var/www; that start with 'x'). Line starting with a ; are ignored (comments).;opcache.blacklist_filename=; Allows exclusion of large files from being cached. By default all files; are cached.;opcache.max_file_size=0; Check the cache checksum each N requests.; The default value of "0" means that the checks are disabled.;opcache.consistency_checks=0; How long to wait (in seconds) for a scheduled restart to begin if the cache; is not being accessed.;opcache.force_restart_timeout=180; OPcache error_log file name. Empty string assumes "stderr".;opcache.error_log=; All OPcache errors go to the Web server log.; By default, only fatal errors (level 0) or errors (level 1) are logged.; You can also enable warnings (level 2), info messages (level 3) or; debug messages (level 4).;opcache.log_verbosity_level=1; Preferred Shared Memory back-end. Leave empty and let the system decide.;opcache.preferred_memory_model=; Protect the shared memory from unexpected writing during script execution.; Useful for internal debugging only.;opcache.protect_memory=0; Validate cached file permissions.; opcache.validate_permission=0; Prevent name collisions in chroot'ed environment.; opcache.validate_root=0[curl]; A default value for the CURLOPT_CAINFO option. This is required to be an; absolute path.;curl.cainfo =[openssl]; The location of a Certificate Authority (CA) file on the local filesystem; to use when verifying the identity of SSL/TLS peers. Most users should; not specify a value for this directive as PHP will attempt to use the; OS-managed cert stores in its absence. If specified, this value may still; be overridden on a per-stream basis via the "cafile" SSL stream context; option.;openssl.cafile=; If openssl.cafile is not specified or if the CA file is not found, the; directory pointed to by openssl.capath is searched for a suitable; certificate. This value must be a correctly hashed certificate directory.; Most users should not specify a value for this directive as PHP will; attempt to use the OS-managed cert stores in its absence. If specified,; this value may still be overridden on a per-stream basis via the "capath"; SSL stream context option.;openssl.capath=; Local Variables:; tab-width: 4; End:译文：
; PHP还是一个不断发展的工具，其功能还在不断地删减 ; 而php.ini的设置更改可以反映出相当的变化， ; 在使用新的PHP版本前，研究一下php.ini会有好处的 ;;;;;;;;;;;;;;;;;;; ; 关于这个文件 ; ;;;;;;;;;;;;;;;;;;; ; 这个文件控制了PHP许多方面的观点.为了让PHP读取这个文件，它必须被命名为 ; 'php.ini'.PHP 将在这些地方依次查找该文件：当前工作目录；环境变量PHPRC ; 指明的路径；编译时指定的路径. ; 在windows下，编译时的路径是Windows安装目录. ; 在命令行模式下，php.ini的查找路径可以用 -c 参数替代. ; 该文件的语法非常简单.空白字符和用分号';'开始的行被简单地忽略（就象你可能 ; 猜到的一样）. 章节标题（例如 : [Foo]）也被简单地忽略，即使将来它们可能 ; 有某种的意义. ; ; 指示被指定使用如下语法： ; 指示标识符 = 值 ; directive = value ; 指示标识符 是 *大小写敏感的* - foo=bar 不同于 FOO = bar. ; ; 值可以是一个字符串，一个数字，一个 PHP 常量 (如： E_ALL or M_PI), INI 常量中的 ; 一个 (On, Off, True, False, Yes, No and None) ，或是一个表达式 ; (如: E_ALL & ~E_NOTICE), 或是用引号括起来的字符串("foo"). ; ; INI 文件的表达式被限制于位运算符和括号. ; | bitwise OR ; & bitwise AND ; ~ bitwise NOT ; ! boolean NOT ; ; 布尔标志可用 1, On, True or Yes 这些值置于开的状态. ; 它们可用 0, Off, False or No 这些值置于关的状态. ; ; 一个空字符串可以用在等号后不写任何东西表示，或者用 None 关键字: ; ; foo = ; 将foo置为空字符串 ; foo = none ; 将foo置为空字符串 ; foo = "none" ; 将foo置为字符串'none' ; ; 如果你值设置中使用常量，而这些常量属于动态调入的扩展库（不是 PHP 的扩展，就是 ; Zend 的扩展），你仅可以调入这些扩展的行*之后*使用这些常量. ; ; 所有在 php.ini-dist 文件里设定的值与内建的默认值相同（这是说，如果 php.ini ; 没被使用或者你删掉了这些行，默认值与之相同）. ;;;;;;;;;;;;;;;;;;;; ; 语言选项 ; ;;;;;;;;;;;;;;;;;;;; engine = On ; 使 PHP scripting language engine（PHP 脚本语言引擎）在 Apache下有效. short_open_tag = On ; 允许 tags 将被识别. asp_tags = Off ; 允许ASP-style tags precision = 14 ; 浮点类型数显示时的有效位数 y2k_compliance = Off ; 是否打开 2000年适应 (可能在非Y2K适应的浏览器中导致问题) output_buffering = Off ; 输出缓存允许你甚至在输出正文内容之后发送 header（标头，包括cookies）行 ; 其代价是输出层减慢一点点速度.你可以使用输出缓存在运行时打开输出缓存， ; 或者在这里将指示设为 On 而使得所有文件的输出缓存打开. output_handler = ; 你可以重定向你的脚本的所有输出到一个函数， ; 那样做可能对处理或以日志记录它有用. ; 例如若你将这个output_handler 设为"ob_gzhandler", ; 则输出会被透明地为支持gzip或deflate编码的浏览器压缩. ; 设一个输出处理器自动地打开输出缓冲. implicit_flush = Off ; 强制flush（刷新）让PHP 告诉输出层在每个输出块之后自动刷新自身数据. ; 这等效于在每个 print() 或 echo() 调用和每个 HTML 块后调用flush()函数. ; 打开这项设置会导致严重的运行时冲突，建议仅在debug过程中打开. allow_call_time_pass_reference = On ; 是否让强迫函数调用时按引用传递参数.这一方法遭到抗议， ; 并可能在将来版本的PHP/Zend里不再支持. ; 受到鼓励的指定哪些参数按引用传递的方法是在函数声明里. ; 你被鼓励尝试关闭这一选项并确认你的脚本仍能正常工作，以保证在将来版本的语言里 ; 它们仍能工作.（你将在每次使用该特点时得到一个警告，而参数将按值而不是按引用 ; 传递）. ; Safe Mode 安全模式 safe_mode = Off safe_mode_exec_dir = safe_mode_allowed_env_vars = PHP_ ; ？Setting certain environment variables ; ？may be a potential security breach. ; 该指示包含用逗号分隔的前缀列表.安全模式中，用户仅可以替换 ; 以在此列出的前缀开头的环境变量的值. ; 默认地，用户将仅能 设定以PHP_开头的环境变量，（如: PHP_FOO=BAR）. ; 注意: 如果这一指示为空，PHP 将让用户更改任意环境变量! safe_mode_protected_env_vars = LD_LIBRARY_PATH ; 这条指示包含一个用逗号分隔的环境变量列表，那是最终用户将不能用putenv () 更改的. ; 这些变量甚至在safe_mode_allowed_env_vars 设置为允许的情况下得到保护. disable_functions = ; 这条指示让你可以为了安全的原因让特定函数失效. ; 它接受一个用逗号分隔的函数名列表. ; 这条指示 *不受* 安全模式是否打开的影响. ; 语法高亮模式的色彩. ; 只要能被接受的东西就能工作. highlight.string = #DD0000 highlight.comment = #FF8000 highlight.keyword = #007700 highlight.bg = #FFFFFF highlight.default = #0000BB highlight.html = #000000 ; Misc 杂项 expose_php = Off ; 决定 PHP 是否标示它装在服务器上的事实（例如：加在它 —PHP—给Web服务 ; 发送的信号上）. ; （我个人的意见，在出现什么power-by的header的时候，把这关掉.） ; 它不会有安全上的威胁, 但它使检查你的服务器上是否安装了PHP成为了可能. ;;;;;;;;;;;;;;;;;;; ; Resource Limits ; ;;;;;;;;;;;;;;;;;;; max_execution_time = 30 ; 每个脚本的最大执行时间, 按秒计 memory_limit = 8388608 ; 一个脚本最大可使用的内存总量 (这里是8MB) ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; Error handling and logging ; ; 出错控制和登记 ; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ; 错误报告是按位的.或者将数字加起来得到想要的错误报告等级. ; E_ALL - 所有的错误和警告 ; E_ERROR - 致命性运行时错 ; E_WARNING - 运行时警告（非致命性错） ; E_PARSE - 编译时解析错误 ; E_NOTICE - 运行时提醒(这些经常是是你的代码的bug引起的， ;也可能是有意的行为造成的.(如：基于未初始化的变量自动初始化为一个 ;空字符串的事实而使用一个未初始化的变量) ; E_CORE_ERROR - 发生于PHP启动时初始化过程中的致命错误 ; E_CORE_WARNING - 发生于PHP启动时初始化过程中的警告(非致命性错) ; E_COMPILE_ERROR - 编译时致命性错 ; E_COMPILE_WARNING - 编译时警告(非致命性错) ; E_USER_ERROR - 用户产生的出错消息 ; E_USER_WARNING - 用户产生的警告消息 ; E_USER_NOTICE - 用户产生的提醒消息 ; 例子: ; error_reporting = E_ALL & ~E_NOTICE ; 显示所有的错误，除了提醒 ; error_reporting = E_COMPILE_ERROR|E_ERROR|E_CORE_ERROR ; 仅显示错误 error_reporting = E_ALL & ~E_NOTICE ; 显示所有的错误，除了提醒 display_errors = On ; 显示出错误信息(作为输出的一部分) ; 在最终发布的web站点上，强烈建议你关掉这个特性，并使用 ; 错误日志代替（参看下面）. ; 在最终发布的web站点继续让 display_errors 有效可能 ; 暴露一些有关安全的信息，例如你的web服务上的文件路径、 ; 你的数据库规划或别的信息. display_startup_errors = Off ; 甚至当display_erroes打开了，发生于PHP的启动的步骤中 ; 的错误也不会被显示. ; 强烈建议保持使 display_startup_errors 关闭， ; 除了在改错过程中. log_errors = Off ; 在日志文件里记录错误（服务器指定的日志，stderr标准错误输出，或error_log(下面的）） ; 正如上面说明的那样，强烈建议你在最终发布的web站点以日志记录错误 ; 取代直接错误输出. track_errors = Off ; 保存最近一个 错误/警告 消息于变量 $php_errormsg (boolean) ;error_prepend_string = "" ; 于错误信息前输出的字符串 ;error_append_string = "" ; 于错误信息后输出的字符串 ;error_log = filename ; 记录错误日志于指定文件 ;error_log = syslog ; 记录错误日志于系统日志 syslog (NT 下的事件日志, Windows 95下无效) warn_plus_overloading = Off ; 当将‘+’用于字符串时警告 ;;;;;;;;;;;;;;;;; ; Data Handling ; ;;;;;;;;;;;;;;;;; variables_order = "EGPCS" ; 这条指示描述了PHP 记录 ; GET, POST, Cookie, Environment and Built-in 这些变量的顺序. ; （以 G, P, C, E & S 代表，通常以 EGPCS 或 GPC 的方式引用）. ; 按从左到右记录，新值取代旧值. register_globals = On ; 是否将这些 EGPCS 变量注册为全局变量. ; 若你不想让用户数据不在全局范围内混乱的话，你可能想关闭它. ; 这和 track_vars 连起来用更有意义 — 这样你可以通过 ; $HTTP_*_VARS[] 数组访问所有的GPC变量. register_argc_argv = On ; 这条指示告诉 PHP 是否声明 argv和argc 变量 ; （注：这里argv为数组,argc为变量数） ; （其中包含用GET方法传来的数据）. ; 若你不想用这些变量，你应当关掉它以提高性能. track_vars = On ; 使$HTTP_*_VARS[]数组有效，这里*在使用时用 ; ENV, POST, GET, COOKIE or SERVER替换 post_max_size = 8M ; PHP将接受的POST数据最大大小. gpc_order = "GPC" ; 这条指示被人反对.用 variables_order 代替. ; Magic quotes magic_quotes_gpc = On ; 在输入的GET/POST/Cookie数据里使用魔术引用 ; （原文就这样，呵呵，所谓magic quotes 应该是指用转义符加在引用性的控制字符上，如 '....） magic_quotes_runtime= Off ; 对运行时产生的数据使用魔术引用， ; 例如：用SQL查询得到的数据，用exec()函数得到的数据，等等 magic_quotes_sybase = Off ; 采用 Sybase形式的魔术引用（用 '' 脱出 ' 而不用 '） ; 自动在 PHP 文档之前和之后添加文件 auto_prepend_file = auto_append_file = ; 象4.04b4一样，PHP 默认地总是在 “Content-type:” 头标输出一个字符的编码方式. ; 让输出字符集失效，只要设置为空. ; PHP 的内建默认值是 text/html default_mimetype = "text/html" ;default_charset = "iso-8859-1" ;;;;;;;;;;;;;;;;;;;;;;;;; ; Paths and Directories ; ;;;;;;;;;;;;;;;;;;;;;;;;; include_path = ; include 路径设置，UNIX: "/path1:/path2" Windows: "path1;path2" doc_root = ; php 页面的根路径，仅在非空时有效 user_dir = ; 告知 php 在使用 /~username 打开脚本时到哪个目录下去找，仅在非空时有效 ;upload_tmp_dir = ; 存放用HTTP协议上载的文件的临时目录（在没指定时使用系统默认的） upload_max_filesize = 2097152 ; 文件上载默认地限制为2 Meg extension_dir = c:php ; 存放可加载的扩充库（模块）的目录 enable_dl = On ; 是否使dl()有效. ; 在多线程的服务器上 dl()函数*不能*很好地工作， ; 例如IIS or Zeus，并在其上默认为禁止 ;;;;;;;;;;;;;;;; ; File Uploads ; ;;;;;;;;;;;;;;;; file_uploads = On ; 是否允许HTTP方式文件上载 ;upload_tmp_dir = ; 用于HTTP上载的文件的临时目录（未指定则使用系统默认） upload_max_filesize = 2M ; 上载文件的最大许可大小 ; Fopen wrappers ; ;;;;;;;;;;;;;;;;;; allow_url_fopen = On ; 是否允许把URLs当作http:.. 或把文件当作ftp:... ;;;;;;;;;;;;;;;;;;;;;; ; 动态扩展 ; ; Dynamic Extensions ; ;;;;;;;;;;;;;;;;;;;;;; ; 若你希望一个扩展库自动加载，用下面的语法： ; extension=modulename.extension ; 例如，在windows上， ; extension=msql.dll ; or 在UNIX下, ; extension=msql.so ; 注意，这只应当是模块的名字，不需要目录信息放在里面. ; 用上面的 extension_dir 指示指定扩展库的位置. ;Windows 扩展 ;extension=php_nsmail.dll extension=php_calendar.dll ;extension=php_dbase.dll ;extension=php_filepro.dll extension=php_gd.dll ;extension=php_dbm.dll ;extension=php_mssql.dll ;extension=php_zlib.dll ;extension=php_filepro.dll ;extension=php_imap4r2.dll ;extension=php_ldap.dll ;extension=php_crypt.dll ;extension=php_msql2.dll ;extension=php_odbc.dll ; 注意， MySQL的支持现在是内建的，因此，不需要用它的dll ;;;;;;;;;;;;;;;;;;; ; 模块设定 ; ; Module Settings ; ;;;;;;;;;;;;;;;;;;; [Syslog] define_syslog_variables = Off ; 是否定义各种的系统日志变量 ; 如：$LOG_PID, $LOG_CRON, 等等. ; 关掉它是个提高效率的好主意. ; 运行时，你可以调用函数define_syslog_variables()，来定义这些变量 [mail function] SMTP = localhost ;仅用于win32系统 sendmail_from = [email protected] ;仅用于win32系统 ;sendmail_path = ;仅用于unix, 也可支持参数（默认的是'sendmail -t -i'） [Debugger] debugger.host = localhost debugger.port = 7869 debugger.enabled = False [Logging] ; 这些配置指示用于示例的日志记录机制. ; 看 examples/README.logging 以得到更多的解释 ;logging.method = db ;logging.directory = /path/to/log/directory [Java] ;java.class.path = .php_java.jar ;java.home = c:jdk ;java.library = c:jdkjreinhotspotjvm.dll ;java.library.path = . [SQL] sql.safe_mode = Off [ODBC] ;uodbc.default_db = Not yet implemented ;uodbc.default_user = Not yet implemented ;uodbc.default_pw = Not yet implemented uodbc.allow_persistent = On ; 允许或禁止 持久连接 uodbc.check_persistent = On ; 在重用前检查连接是否还可用 uodbc.max_persistent = -1 ; 持久连接的最大数.-1 代表无限制 uodbc.max_links = -1 ; 连接的最大数目（持久和非持久）.-1 代表无限制 uodbc.defaultlrl = 4096 ; 控制 LONG 类型的字段.返回变量的字节数，0 代表通过（？）0 means passthru uodbc.defaultbinmode = 1 ; 控制 二进制数据.0 代表?????Handling of binary data. 0 means passthru, 1 return as is, 2 convert to char ; 见有关 odbc_binmode 和 odbc_longreadlen 的文档以得到 uodbc.defaultlrl 和 uodbc.defaultbinmode 的解释. [MySQL] mysql.allow_persistent = On ; 允许或禁止 持久连接 mysql.max_persistent = -1 ; 持久连接的最大数.-1 代表无限制 mysql.max_links = -1 ; 连接的最大数目（持久和非持久）.-1 代表无限制 mysql.default_port = ; mysql_connect() 使用的默认端口，如不设置，mysql_connect() ; 将使用变量 $MYSQL_TCP_PORT，或在/etc/services 下的mysql-tcp 条目(unix)， ; 或在编译是定义的 MYSQL_PORT(按这样的顺序) ; Win32环境，将仅检查MYSQL_PORT. mysql.default_socket = ; 用于本地 MySql 连接的默认的套接字名.为空，使用 MYSQL 内建值 mysql.default_host = ; mysql_connect() 默认使用的主机（安全模式下无效） mysql.default_user = ; mysql_connect() 默认使用的用户名（安全模式下无效） mysql.default_password = ; mysql_connect() 默认使用的密码（安全模式下无效） ; 注意，在这个文件下保存密码通常是一个*坏*主意 ; *任何*可以使用PHP访问的用户可以运行 ; 'echo cfg_get_var("mysql.default_password")'来显示那个密码! ; 而且当然地，任何有读该文件权力的用户也能看到那个密码. [mSQL] msql.allow_persistent = On ; 允许或禁止 持久连接 msql.max_persistent = -1 ; 持久连接的最大数.-1 代表无限制 msql.max_links = -1 ; 连接的最大数目（持久和非持久）.-1 代表无限制 [PostgresSQL] pgsql.allow_persistent = On ; 允许或禁止 持久连接 pgsql.max_persistent = -1 ; 持久连接的最大数.-1 代表无限制 pgsql.max_links = -1 ; 连接的最大数目（持久和非持久）.-1 代表无限制 [Sybase] sybase.allow_persistent = On ; 允许或禁止 持久连接 sybase.max_persistent = -1 ; 持久连接的最大数.-1 代表无限制 sybase.max_links = -1 ; 连接的最大数目（持久和非持久）.-1 代表无限制 ;sybase.interface_file = "/usr/sybase/interfaces" sybase.min_error_severity = 10 ; 显示的错误的最低严重性 sybase.min_message_severity = 10 ; 显示的消息的最低重要性 sybase.compatability_mode = Off ; 与旧版的PHP 3.0 兼容的模式.若打开，这将导致 PHP 自动地 ; 把根据结果的 Sybase 类型赋予它们， ; 而不是把它们全当成字符串. ; 这个兼容模式不会永远留着， ; 因此，将你的代码进行需要的修改， ; 并将该项关闭. [Sybase-CT] sybct.allow_persistent = On ; 允许或禁止 持久连接 sybct.max_persistent = -1 ; 持久连接的最大数.-1 代表无限制 sybct.max_links = -1 ; 连接的最大数目（持久和非持久）.-1 代表无限制 sybct.min_server_severity = 10 ; 显示的错误的最低严重性 sybct.min_client_severity = 10 ; 显示的消息的最低重要性 [bcmath] bcmath.scale = 0 ; 用于所有bcmath函数的10十进制数数字的个数number of decimal digits for all bcmath functions [browscap] ;browscap = extra/browscap.ini browscap = C:WINSYSTEMinetsrvrowscap.ini [Informix] ifx.default_host = ; ifx_connect() 默认使用的主机（安全模式下无效） ifx.default_user = ; ifx_connect() 默认使用的用户名（安全模式下无效） ifx.default_password = ; ifx_connect() 默认使用的密码（安全模式下无效） ifx.allow_persistent = On ; 允许或禁止 持久连接 ifx.max_persistent = -1 ; 持久连接的最大数.-1 代表无限制 ifx.max_links = -1 ; 连接的最大数目（持久和非持久）.-1 代表无限制 ifx.textasvarchar = 0 ; 若打开，select 状态符返回一个 ‘text blob’字段的内容，而不是它的id ifx.byteasvarchar = 0 ; 若打开，select 状态符返回一个 ‘byte blob’字段的内容，而不是它的id ifx.charasvarchar = 0 ; 追踪从固定长度的字符列里剥离的空格. ; 可能对 Informix SE 用户有效. ifx.blobinfile = 0 ; 若打开，text和byte blobs 的内容被导出到一个文件 ; 而不是保存到内存. ifx.nullformat = 0 ; NULL（空）被作为空字段返回，除非，这里被设为1. ; 这种情况下（为1），NULL作为字串NULL返回. [Session] session.save_handler = files ; 用于保存/取回数据的控制方式 session.save_path = C:win emp ; 在 save_handler 设为文件时传给控制器的参数， ; 这是数据文件将保存的路径. session.use_cookies = 1 ; 是否使用cookies session.name = PHPSESSID ; 用在cookie里的session的名字 session.auto_start = 0 ; 在请求启动时初始化session session.cookie_lifetime = 0 ; 为按秒记的cookie的保存时间， ; 或为0时，直到浏览器被重启 session.cookie_path = / ; cookie的有效路径 session.cookie_domain = ; cookie的有效域 session.serialize_handler = php ; 用于连接数据的控制器 ; php是 PHP 的标准控制器. session.gc_probability = 1 ; 按百分比的'garbage collection（碎片整理）'进程 ; 在每次 session 初始化的时候开始的可能性. session.gc_maxlifetime = 1440 ; 在这里数字所指的秒数后，保存的数据将被视为 ; '碎片(garbage)'并由gc 进程清理掉. session.referer_check = ; 检查 HTTP引用以使额外包含于URLs中的ids无效 session.entropy_length = 0 ; 从文件中读取多少字节 session.entropy_file = ; 指定这里建立 session id ; session.entropy_length = 16 ; session.entropy_file = /dev/urandom session.cache_limiter = nocache ; 设为{nocache,private,public},以决定 HTTP 的 ; 缓存问题 session.cache_expire = 180 ; 文档在 n 分钟后过时 session.use_trans_sid = 1 ; 使用过渡性的 sid 支持，若编译时许可了 ; --enable-trans-sid url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeentry" [MSSQL] ;extension=php_mssql.dll mssql.allow_persistent = On ; 允许或禁止 持久连接 mssql.max_persistent = -1 ; 持久连接的最大数.-1 代表无限制 mssql.max_links = -1 ; 连接的最大数目（持久和非持久）.-1 代表无限制 mssql.min_error_severity = 10 ; 显示的错误的最低严重性 mssql.min_message_severity = 10 ; 显示的消息的最低重要性 mssql.compatability_mode = Off ; 与旧版的PHP 3.0 兼容的模式. [Assertion] ; ？？？？？ ;assert.active = On ; ？assert(expr); active by default ;assert.warning = On ; issue a PHP warning for each failed assertion. ;assert.bail = Off ; don't bail out by default. ;assert.callback = 0 ; user-function to be called if an assertion fails. ;assert.quiet_eval = 0 ; eval the expression with currenterror_reporting(). set to true if you want error_reporting(0) aroundthe eval(). [Ingres II] ii.allow_persistent = On ; 允许或禁止 持久连接 ii.max_persistent = -1 ; 持久连接的最大数.-1 代表无限制 ii.max_links = -1 ; 连接的最大数目（持久和非持久）.-1 代表无限制 ii.default_database = ; 默认 database (format : [node_id::]dbname[/srv_class] ii.default_user = ; 默认 user ii.default_password = ; 默认 password [Verisign Payflow Pro] pfpro.defaulthost = "test.signio.com" ; 默认的 Signio 服务器 pfpro.defaultport = 443 ; 连接的默认端口 pfpro.defaulttimeout = 30 ; 按秒计的默认超时时间 ; pfpro.proxyaddress = ; 默认的代理的 IP 地址（如果需要） ; pfpro.proxyport = ; 默认的代理的端口 ; pfpro.proxylogon = ; 默认的代理的登录（logon 用户名） ; pfpro.proxypassword = ; 默认的代理的密码 [Sockets] sockets.use_system_read = On ; 使用系统的read() 函数替代 php_read()封装 ; Local Variables: （局部变量） ; tab-width: 4 ; End: