PHP configuration file Detailed php.ini

Source: Internet
Author: User
Tags bitwise operators control characters informix parse error sybase syslog zend payflow pro

; PHP is also a constantly evolving tool, and its functionality is constantly being truncated.
; And PHP.ini's settings change can reflect a considerable change,
; It's good to study php.ini before using the new PHP version.

; about this document;

; This file controls many aspects of PHP's view. In order for PHP to read this file, it must be named
; ' PHP.ini '. PHP will look for the file in these places: current working directory; environment variable PHPRC
; The path specified at compile time.
; Under Windows, the path at compile time is the Windows installation directory.
; In command-line mode, the php.ini lookup path can be substituted with the-c parameter.

; The syntax of the file is very simple. Blank characters and semicolons '; ' The starting line is simply ignored (as you might
; guessed). Chapter headings (For example: [Foo]) are also simply ignored, even though they may be
in the future;
; indicates that the following syntax is specified:
; indicates identifier = value
; directive = value
; Indicates that the identifier is case-sensitive *-Foo=bar differs from foo = bar.
; value can be a string, a number, a PHP constant (such as: E_all or M_PI), the INI constant in the
, a (on, Off, True, False, Yes, No and None), or an expression
; (such as: E_all & ~e_notice), or a string enclosed in quotation marks ("foo").
; INI file is limited to bitwise operators and parentheses.
; | bitwise OR
; & Bitwise AND
; ~ bitwise not
;. Boolean not
; Boolean flag available 1, ON, True or Yes These values are in the open state.
; they can be 0, off, False, or No. These values are placed in the off state.
; An empty string can be used after the equal sign to not write anything, or with the None keyword:
; foo =; set Foo to an empty string
; foo = none; set Foo to an empty string
; foo = "None"; put Foo As String ' None '
; If you use constants in your value settings, these constants belong to the extended library of dynamic push-in (not PHP extensions, which is
; Zend extension), you can only use these constants after you have transferred the lines of these extensions * *.
; All values set in the Php.ini-dist file are the same as the built-in defaults (that is, if php.ini
is not used or if you delete the lines, the default values are the same).

; Language Options;

Engine = On
; Makes PHP scripting language engine (PHP scripting language Engine) valid under Apache.
Short_open_tag = On
; Allow tags to be recognized.
Asp_tags = Off
; Allow Asp-style tags
Precision = 14
; Number of significant digits when floating-point type is displayed

Y2k_compliance = Off
; Whether to open 2000 adaptation (may cause problems in non-Y2K adapted browsers)

output_buffering = Off
; The output cache allows you to send headers (headers, including cookies) even after the output body content.
; The cost is that the output layer slows down a little bit. You can use output caching to open the output cache at run time.
; Alternatively, set the indicator to on to make the output cache for all files open.
Output_handler =; You can redirect all the output of your script to a function,
; Doing so can be useful for handling or logging it.
; For example, if you set this output_handler to "Ob_gzhandler",
; The output is transparently compressed for a browser that supports gzip or deflate encoding.
; Set an output processor to automatically turn on the output buffer.

Implicit_flush = Off
; Forcing flush (refresh) allows PHP to tell the output layer to automatically refresh its data after each output block.
; This is equivalent to calling the flush () function after each print () or echo () call and each HTML block.
; Opening this setting causes serious runtime conflicts and is recommended to be opened only during the debug process.

Allow_call_time_pass_reference = On
; Whether to allow arguments to be passed by reference when forcing a function call. This approach has been protested,
; and may no longer be supported in future versions of Php/zend.
; Encouraged to specify which parameters are passed by reference in the function declaration.
; You are encouraged to try to close this option and confirm that your script still works to ensure that in future versions of the language
; They can still work. (You'll get a warning every time you use this feature, and the argument will be by value instead of by reference
; Delivery).

; Safe Mode
Safe_mode = Off
Safe_mode_exec_dir =
Safe_mode_allowed_env_vars = Php_
; ? Setting Certain environment variables
; ? May is a potential security breach.
; The indicator contains a comma-delimited list of prefixes. In Safe mode, users can only replace
; The value of the environment variable that begins with the prefix listed here.
; By default, users will only be able to set environment variables that start with PHP_ (for example, Php_foo=bar).
; Note: If this instruction is empty, PHP will let the user change any environment variable!

Safe_mode_protected_env_vars = Ld_library_path
; This instruction contains a comma-delimited list of environment variables that the end user will not be able to change with putenv ().
; These variables are protected even when the Safe_mode_allowed_env_vars is set to allow.

Disable_functions =
; This directive allows you to invalidate a particular function for security reasons.
; It accepts a comma-delimited list of function names.
; This instruction * is not affected by the open security mode.

; The color of the syntax highlighting mode.
; You can work as long as you can accept something.

highlight.string = #DD0000
Highlight.comment = #FF8000
Highlight.keyword = #007700 = #FFFFFF
Highlight.default = #0000BB
highlight.html = #000000

; Misc Miscellaneous
expose_php = Off
; Decide whether PHP will indicate the fact that it is installed on the server (for example: add it-php-to the Web service
; The signal sent).
; (My personal opinion, in the presence of what power-by header, turn this off.) )
; It will not be a security threat, but it makes it possible to check if PHP is installed on your server.

; Resource Limits;

Max_execution_time = 30; Maximum execution time per script, per second
Memory_limit = 8388608; The maximum amount of memory a script can use (this is 8MB)

; Error handling and logging;
; Error control and registration;
; The error report is bitwise. Or add up the numbers to get the error report level you want.
; E_all-All errors and warnings
; E_error-Fatal Run-time error
; E_warning-run-time warning (non-fatal error)
; E_parse-Compile-time parse error
; E_notice-Runtime Reminders (these are often caused by bugs in your code,
, or it may be intentional behavior. (for example, an uninitialized variable is automatically initialized to a
The fact of an empty string uses an uninitialized variable)

; E_core_error-fatal error occurred during initialization of PHP startup
; E_core_warning-A warning (non-fatal error) that occurred during initialization of PHP startup
; E_compile_error-Compile-time fatal error
; E_compile_warning-Compile-time warning (non-fatal error)
; E_user_error-error message generated by the user
; E_user_warning-user-generated warning message
; E_user_notice-user-generated reminder message
; example:
; error_reporting = E_all & ~e_notice; show all errors except reminders
; error_reporting = E _compile_error| e_error| E_core_error; Show Error only
Error_reporting = E_all & ~e_notice; show all errors except reminder
Display_errors = on; Display error message (as part of output)
; in final release W On the EB site, it is strongly recommended that you turn off this feature and use the
; error log instead (see below).
; continue to make display_errors effective in the final published Web site
; Expose some information about security, such as the file path on your Web service,
, your database planning, or other information.
Display_startup_errors = Off; even when Display_erroes is open, it occurs in PHP's boot step
; The error is not displayed.
; It is strongly recommended to keep the display_startup_errors closed,
except in the process of error modification.
Log_errors = Off; errors are logged in the log file (server-specified log, stderr standard error output, or Error_log (below))
; As stated above, it is strongly recommended that you log errors in the final published Web site by logging the error
; Replace the direct error output.

Track_errors = OFF; Save most recent error/warning message to Variable $php _errormsg (Boolean)
; error_prepend_string = ""; String to output before the error message
; error_append_string = ""; The string to output after the error message
; error_log = filename; Logging the error log in the specified file
; error_log = syslog; Logging error log in Syslog (NT event Log, Windows 95 is not valid)
warn_plus_overloading = OFF; Warning when ' + ' is used for strings

; Data handling;
Variables_order = "Egpcs"; This instruction describes the PHP record
; GET, POST, Cookie, environment and built-in the order of these variables.
; (represented by G, P, C, E & S, usually referred to as egpcs or GPC).
; The new value replaces the old value by a left-to-right record.

Register_globals = on; Whether to register these egpcs variables as global variables.
; If you don't want the user data to be out of scope, you might want to close it.
; It's more meaningful to connect with track_vars-so you can get through
; $HTTP _*_vars[] Array accesses all the GPC variables.

REGISTER_ARGC_ARGV = on; This instruction tells PHP whether to declare argv and ARGC variables
; (Note: Here argv is an array, ARGC is the number of variables)
; (which contains data from the Get method).
; If you don't want to use these variables, you should turn it off to improve performance.

Track_vars = on; Make $http_*_vars[] Array valid, here * in use
; ENV, POST, GET, COOKIE or server replace
Post_max_size = 8M; The maximum size of post data that PHP will accept.

Gpc_order = "GPC"; The instruction was objected to. Replace with Variables_order.

; Magic Quotes
MAGIC_QUOTES_GPC = on; Use the Magic reference in the input Get/post/cookie data
; (This is the original, hehe, the so-called magic quotes should be used to escape multibyte in the quoted control characters, such as ' .... )
Magic_quotes_runtime= Off; Use a magic reference to the data generated at run time,
; For example: data obtained with SQL queries, data obtained with the EXEC () function, etc.
Magic_quotes_sybase = OFF; Use Sybase as a magic reference ("Out of the way" instead of ')

; Automatically add files before and after a PHP document
Auto_prepend_file =
Auto_append_file =

; Like 4.04B4, PHP defaults to the "Content-type:" header to output a character encoding.
; Invalidates the output character set as long as it is set to null.
; The built-in default value for PHP is text/html
Default_mimetype = "Text/html"
;d efault_charset = "Iso-8859-1"

; Paths and directories;
include_path =; Include path settings, UNIX: "/path1:/path2" Windows: "\path1;\path2"
Doc_root =; The root path of the PHP page, valid only when not empty
User_dir =; Tell PHP which directory to search for when opening a script with/~username, only valid when not empty
; upload_tmp_dir =; Temporary directory for files uploaded with HTTP protocol (use system default if not specified)
Upload_max_filesize = 2097152; File upload is limited to 2 Meg by default
Extension_dir = c:\php\; A directory that holds the Loadable Expansion Library (module)
ENABLE_DL = on; Whether to make DL () valid.
; The DL () function on a multithreaded server * does not work well,
; For example, IIS or Zeus, and on which it is disabled by default

; File uploads;
File_uploads = on; Whether to allow HTTP mode file upload
; upload_tmp_dir =; Temp directory for files uploaded by HTTP (use system default if not specified)
Upload_max_filesize = 2M; Maximum license size for uploaded files

; Fopen wrappers;
Allow_url_fopen = on; Whether to allow URLs as http:. or the file as ftp: ...

; Dynamic expansion;
; Dynamic Extensions;
; If you want an extension library to load automatically, use the following syntax:
; Extension=modulename.extension
; For example, on Windows,
; Extension=msql.dll
; or under UNIX,
; Note that this should only be the name of the module and does not require directory information to be placed inside.
; Specify the location of the extension library with the extension_dir above.

; Windows Extensions
; Extension=php_nsmail.dll
; Extension=php_dbase.dll
; Extension=php_filepro.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
; Note that MySQL support is now built-in, so it's not necessary to use its DLL

; module settings;
; Module Settings;

Define_syslog_variables = OFF; Whether to define various system log variables
; such as: $LOG _pid, $LOG _cron, and so on.
; Turning it off is a good idea to improve efficiency.
; At run time, you can call the function define_syslog_variables () to define these variables

[Mail Function]
SMTP = localhost; only for Win32 systems
Sendmail_from = [email protected] ; only for Win32 systems
; sendmail_path =; for Unix only, it can also support parameters (default is ' sendmail-t-i ')

[Debugger] = localhost
Debugger.port = 7869
debugger.enabled = False

; These configurations indicate the logging mechanism for the sample.
; Look at examples/readme.logging to get more explanations.
; Logging.method = db
; =/path/to/log/directory

; Java.class.path =. \php_java.jar
; java.home = C:\jdk
; java.library = C:\jdk\jre\bin\hotspot\jvm.dll
; Java.library.path =. \

Sql.safe_mode = Off

; uodbc.default_db = not yet implemented
; Uodbc.default_user = not yet implemented
; UODBC.DEFAULT_PW = Not yet implemented
Uodbc.allow_persistent = on; Allow or disallow persistent connection
Uodbc.check_persistent = on; Check if the connection is also available before reuse
UO Dbc.max_persistent =-1; The maximum number of persistent connections. -1 for unrestricted
Uodbc.max_links =-1; Maximum number of connections (persistent and non-persistent). -1 for unrestricted
UODBC.DEFAULTLRL = 4096; controls the field of type LONG. Returns the number of bytes of the variable, and 0 represents the pass (? ) 0 means passthru
Uodbc.defaultbinmode = 1; control binary data. 0 stands for????? Handling of binary data. 0 means passthru, 1 return as IS, 2 convert to char
; see the documentation for Odbc_binmode and Odbc_longreadlen for UODBC.DEFAULTLRL and UO Dbc.defaultbinmode's explanation.

Mysql.allow_persistent = on; Allow or disallow persistent connections
Mysql.max_persistent =-1; The maximum number of persistent connections. -1 means no limit
Mysql.max_links =-1; The maximum number of connections (persistent and non-persistent). -1 means no limit
Mysql.default_port =; mysql_connect () default port used, if not set, mysql_connect ()
; The variable will be used $MYSQL _tcp_port, or the MYSQL-TCP entry under/etc/services (Unix),
; Or in the compilation is defined by the Mysql_port (in this order)
; Win32 environment, only mysql_port will be checked.
Mysql.default_socket =; The default socket name for the local MYSQL connection. Empty, use MYSQL built-in values

Mysql.default_host =; Mysql_connect () Default host (not available in safe mode)
Mysql.default_user =; mysql_connect () User name used by default (not valid in Safe mode)
Mysql.default_password =; mysql_connect () default password used (invalid in safe mode)
; Note that saving passwords under this file is usually a bad * idea
; * Any user with PHP access can run
; ' Echo cfg_get_var (' Mysql.default_password ') ' to show that password!
; And of course, any user who has read the file's power can see that password.

Msql.allow_persistent = on; Allow or disallow persistent connections
Msql.max_persistent =-1; The maximum number of persistent connections. -1 means no limit
Msql.max_links =-1; The maximum number of connections (persistent and non-persistent). -1 means no limit

Pgsql.allow_persistent = on; Allow or disallow persistent connections
Pgsql.max_persistent =-1; The maximum number of persistent connections. -1 means no limit
Pgsql.max_links =-1; The maximum number of connections (persistent and non-persistent). -1 means no limit

Sybase.allow_persistent = on; Allow or disallow persistent connections
Sybase.max_persistent =-1; The maximum number of persistent connections. -1 means no limit
Sybase.max_links =-1; The maximum number of connections (persistent and non-persistent). -1 means no limit
; sybase.interface_file = "/usr/sybase/interfaces"
Sybase.min_error_severity = 10; Minimum severity of errors displayed
Sybase.min_message_severity = 10; Minimum importance of the displayed message
Sybase.compatability_mode = OFF; Mode compatible with older versions of PHP 3.0. If turned on, this will cause PHP to automatically
; Give them the type of Sybase based on the results,
; Instead of treating them all as strings.
; This compatibility mode will not be kept forever,
; So put your code in the necessary modifications,
; and closes the item.

Sybct.allow_persistent = on; Allow or disallow persistent connections
Sybct.max_persistent =-1; The maximum number of persistent connections. -1 means no limit
Sybct.max_links =-1; The maximum number of connections (persistent and non-persistent). -1 means no limit
Sybct.min_server_severity = 10; Minimum severity of errors displayed
Sybct.min_client_severity = 10; Minimum importance of the displayed message

Bcmath.scale = 0; The number of 100 decimal digits used for all Bcmath functions is number of decimal digits for all Bcmath functions

; browscap = Extra/browscap.ini
Browscap = C:\WIN\SYSTEM\inetsrv\browscap.ini
Ifx.default_host =; Ifx_connect () Default host (not available in safe mode)
Ifx.default_user =; Ifx_connect () User name used by default (not valid in Safe mode)
Ifx.default_password =; Ifx_connect () default password used (invalid in safe mode)
Ifx.allow_persistent = on; Allow or disallow persistent connections
Ifx.max_persistent =-1; The maximum number of persistent connections. -1 means no limit
Ifx.max_links =-1; The maximum number of connections (persistent and non-persistent). -1 means no limit
Ifx.textasvarchar = 0; If open, the Select State character returns the contents of a ' text blob ' field instead of its ID
Ifx.byteasvarchar = 0; If open, the Select State character returns the contents of a ' byte blob ' field instead of its ID
Ifx.charasvarchar = 0; Track the space stripped from the fixed-length word Fulieri.
; may be valid for Informix SE users.
Ifx.blobinfile = 0; If open, the contents of text and byte blobs are exported to a file
; Instead of saving to memory.
Ifx.nullformat = 0; Null (NULL) is returned as an empty field, unless it is set to 1.
; In this case (1), NULL is returned as a string null.

Session.save_handler = files; control mode for saving/retrieving data
Session.save_path = C:\win\temp; Parameters that are passed to the controller when the Save_handler is set to a file,
; This is the path where the data file will be saved.
Session.use_cookies = 1; Whether to use cookies = Phpsessid
; The name of the session used in the cookie.
Session.auto_start = 0; Initializing session at request startup
Session.cookie_lifetime = 0; The time to save the cookie in seconds,
; or 0 o'clock until the browser is restarted
Session.cookie_path =/; Valid path for cookies
Session.cookie_domain =; The valid domain of the cookie
Session.serialize_handler = PHP; The controller used to connect the data
; PHP is the standard controller for PHP.
session.gc_probability = 1; ' Garbage collection (defragmentation) ' process by percentage
; The possibility of starting each time the session is initialized.
Session.gc_maxlifetime = 1440; After the number of seconds referred to here, the saved data will be treated as
; ' Fragment (garbage) ' and cleared by the GC process.
Session.referer_check =; Check for HTTP references to invalidate IDs that are included in the additional URLs
session.entropy_length = 0; How many bytes are read from a file
Session.entropy_file =; Specify the session ID to be established here
; Session.entropy_length = 16
; Session.entropy_file =/dev/urandom
Session.cache_limiter = NoCache; Set to {Nocache,private,public} to determine the HTTP
; Caching issues
Session.cache_expire = 180; Document is obsolete after n minutes
Session.use_trans_sid = 1; Use the transitional SID support if the compile-time license
; --enable-trans-sid
Url_rewriter.tags = "A=href,area=href,frame=src,input=src,form=fakeentry"

; Extension=php_mssql.dll
Mssql.allow_persistent = on; Allow or disallow persistent connections
Mssql.max_persistent =-1; The maximum number of persistent connections. -1 means no limit
Mssql.max_links =-1; The maximum number of connections (persistent and non-persistent). -1 means no limit
Mssql.min_error_severity = 10; Minimum severity of errors displayed
Mssql.min_message_severity = 10; Minimum importance of the displayed message
Mssql.compatability_mode = OFF; Mode compatible with older versions of PHP 3.0.

; ?????
; = 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 is called if an assertion fails.
; assert.quiet_eval = 0; Eval the expression with current error_reporting (). Set to True if you want Error_reporting (0) around the eval ().

[Ingres II]
Ii.allow_persistent = on; Allow or disallow persistent connections
Ii.max_persistent =-1; The maximum number of persistent connections. -1 means no limit
Ii.max_links =-1; The maximum number of connections (persistent and non-persistent). -1 means no limit
Ii.default_database =; Default database (format: [Node_id::]dbname[/srv_class]
Ii.default_user =; Default User
Ii.default_password =; Default password

[Verisign Payflow Pro]
Pfpro.defaulthost = ""; The default Signio server
Pfpro.defaultport = 443; Default port for connections
Pfpro.defaulttimeout = 30; Default time-out by seconds

; Pfpro.proxyaddress =; IP address of the default proxy (if required)
; Pfpro.proxyport =; The default proxy port
; Pfpro.proxylogon =; Default proxy login (logon username)
; Pfpro.proxypassword =; Password for the default proxy

Sockets.use_system_read = on; Replace the Php_read () package with the Read () function of the system
; Local Variables: (locally variable)
; Tab-width:4
; End

PHP configuration file Detailed php.ini

Related Article

E-Commerce Solutions

Leverage the same tools powering the Alibaba Ecosystem

Learn more >

Apsara Conference 2019

The Rise of Data Intelligence, September 25th - 27th, Hangzhou, China

Learn more >

Alibaba Cloud Free Trial

Learn and experience the power of Alibaba Cloud with a free trial worth $300-1200 USD

Learn more >

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: and provide relevant evidence. A staff member will contact you within 5 working days.