Highly recommended: php.ini Chinese version (1) _php Foundation

[PHP]
; PHP is still an evolving tool, and its functionality is constantly being pruned
; and PHP.ini's setting changes can reflect quite a change,
; Before using the new PHP version, it would be helpful to look at the php.ini.

;;;;;;;;;;;;;;;;;;;
; about this document;


; This file controls many aspects of PHP's perspective. In order for PHP to read this file, it must be named
; ' PHP.ini '. PHP will locate the file in turn: current working directory; environment variable PHPRC
; The specified path, 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 replaced with the-c parameter.

; The syntax for this file is very simple. Blank character and semicolon '; ' The start line is simply ignored (as you might
; guessed). Chapter headings (For example: [Foo]) are also simply ignored, even though they may
; Have some kind of meaning.

; Indicates that the following syntax is specified:
; Indicates an identifier = value
; directive = value
; Indicates that the identifier is * case sensitive *-Foo=bar is different from foo = bar.

; The value can be a string, a number, a PHP constant (such as: E_all or M_PI), and the INI constant
; One (on, off, True, False, Yes, No and None), or an expression
; (such as: E_all & ~e_notice), or a string enclosed in quotes ("foo").

; INI file is limited to bitwise operators and parentheses.
; | Bitwise OR
; & Bitwise AND
; ~ Bitwise NOT
; ! Boolean not

; Boolean flags can be placed in the open state with 1, on, True or Yes.
; They can be placed on a state that has a value of 0, off, False, or No.

; An empty string can be represented by an equal sign without writing anything, or with the None keyword:

; Foo =; Place Foo as an empty string
; foo = none; Place Foo as an empty string
; Foo = "None"; Place Foo As String ' None '

; If you use constants in your value settings, these constants belong to the extended libraries that are dynamically transferred (not PHP extensions, or
; Zend extension), you can only transfer these extended rows * and use these constants.

; All the values set in the Php.ini-dist file are the same as the built-in defaults (which is to say that if the php.ini
; is not used or you have deleted these lines, the default value is the same.



; Language Options;


Engine = On
; Make PHP scripting language engine (PHP scripting language Engine) valid under Apache.
Short_open_tag = On
; Let's do it. Identification (this simple representation). Otherwise only <?php and <script> tags will be identified.
Asp_tags = Off
; Allow Asp-style <%%> tags
Precision = 14
; Number of significant digits when the number of floating-point types is displayed

Y2k_compliance = Off
; Whether to open the 2000 adaptation (may cause problems in a Y2K-adapted browser)

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

Implicit_flush = Off
; Force flush (refresh) Let PHP tell the output layer to automatically refresh its own 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 can cause serious run-time conflicts and is recommended for opening only during Debug.

Allow_call_time_pass_reference = On
; Whether to pass arguments by reference when forcing a function call. This approach has been protested,
; and may no longer be supported in future versions of Php/zend.
; The method that is encouraged to specify which parameters are passed by reference is in the function declaration.
; You are encouraged to try to close this option and confirm that your script is still working to ensure that in future versions of the language
; They can still work. (You will get a warning each time you use this feature, and the parameters 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 indication contains a comma-delimited list of prefixes. In Safe mode, users can only replace
; The value of the environment variable that starts with the prefix listed here.
; By default, users will only be able to set environment variables that start with PHP_, (such as: Php_foo=bar).
; Note: If this indicator 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 even protected when the Safe_mode_allowed_env_vars is set to allow.

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

; Syntax highlighting mode of color.
; As long as you can be <font color=??? > Accept things to work.
highlight.string = #DD0000
Highlight.comment = #FF8000
Highlight.keyword = #007700
highlight.bg = #FFFFFF
Highlight.default = #0000BB
highlight.html = #000000

; Misc Miscellaneous
expose_php = Off
; Decide whether PHP will indicate the fact that it's installed on the server (for example: add it to the-php-Web service
; sent on the signal).
; (My personal opinion, in the presence of what power-by header, turn this off.) ）
; It doesn't have 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 for each script, in seconds
Memory_limit = 8388608; The maximum amount of memory a script can use (this is 8M



; Error handling and logging;
; Error control and registration;

; The error report is bitwise. Or add up the numbers to get the error reporting level you want.
; E_all-All errors and warnings
; E_error-Fatal Run-time Error
; E_warning-Runtime Warning (non-fatal error)
; E_parse-Compile-time parse error
; E_notice-Run-time Reminders (these are often caused by bugs in your code,
; it could be a deliberate act. (such as: Automatically initialize an uninitialized variable to a
; the fact of an empty string uses an uninitialized variable)

; E_core_error-fatal error occurred during initialization of PHP
; E_core_warning-Warning (non-fatal error) during initialization during PHP startup
; E_compile_error-Compile-time fatal error
; E_compile_warning-compile-time warnings (non-fatal errors)
; E_user_error-user-generated error message
; 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 only Errors
error_reporting = E_all & ~e_notice; Show all errors except reminders
Display_errors = on; Displays an error message (as part of the output)
; In the final release of the Web site, it is strongly recommended that you turn off this feature and use
; Error log instead (see below).
; Continue to make display_errors available on the final published Web site
; Expose some security-related information, such as the file path on your Web service,
; Your database planning or other information.
Display_startup_errors = off; Even when Display_erroes is turned on, it happens in the steps of starting PHP
; Errors will not be displayed.
; It is strongly recommended that the display_startup_errors be kept closed,
; Except in the process of error modification.
Log_errors = off; Error logging in log file (server-specified log, stderr standard error output, or Error_log (below))
; As explained above, it is strongly recommended that you log errors in the final published Web site
; Instead of direct error output.

Track_errors = off; Save last Error/warning message in variable $php _errormsg (Boolean)
; error_prepend_string = "<font color=ff0000>"; The string to output before the error message
; error_append_string = "</font>"; The string to output after the error message
; error_log = filename; Logging error log in specified file
; error_log = syslog; Logging error log in System log syslog (event log under NT, invalid under Windows 95)
warn_plus_overloading = off; Warning when ' + ' is used for string



; Data handling;

Variables_order = "Egpcs"; This instruction describes the PHP record
; Get, POST, Cookie, environment and built-in the order of these variables.
; (G, P, C, E & S, usually referenced in the form of Egpcs or GPC).
; Record from left to right and the new value replaces the old value.

Register_globals = on; Whether to register these egpcs variables as global variables.
; You might want to close the user's data if you don't want it to clutter up the global scope.
; It's more meaningful to connect with track_vars-so you can pass
; $HTTP _*_vars[] Array to access all 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 a variable number)
; (which contains data from the Get method).
; If you don't want to use these variables, you should turn it off to improve performance.
(Source: Day-poor birds)