LXIV. Miscellaneous Functions

简介

These functions were placed here because none of the other categories seemed to fit.

需求

无需外部库文件就可以加入本扩展模块的支持。

安装

这些函数作为 PHP 核心的一部分,无需被安装即可使用。

运行时配置

这些函数的行为受到全局配置文件 php.ini 的影响。

表格 1. Misc. Configuration Options

NameDefaultChangeable
ignore_user_abort"0"PHP_INI_ALL
highlight.string#DD0000PHP_INI_ALL
highlight.comment#FF9900PHP_INI_ALL
highlight.keyword#007700PHP_INI_ALL
highlight.bg#FFFFFFPHP_INI_ALL
highlight.default#0000BBPHP_INI_ALL
highlight.html#000000PHP_INI_ALL
browscapNULLPHP_INI_SYSTEM
For further details and definition of the PHP_INI_* constants see ini_set().

以下是该配置选项的简要解释。

ignore_user_abort boolean

TRUE by default. If changed to FALSE scripts will be terminated as soon as they try to output something after a client has aborted their connection.

See also ignore_user_abort().

highlight.bg string, highlight.comment string, highlight.default string, highlight.html string, highlight.keyword string, highlight.string string

Colors for Syntax Highlighting mode. Anything that's acceptable in <font color="??????"> would work.

browscap string

Name (e.g.: browscap.ini) and location of browser capabilities file. See also get_browser().

资源类型

该扩展模块未定义任何资源类型。

预定义常量

由于这些常量是由该扩展模块定义的,因此只有在该扩展模块被编译到 PHP 中,或者在运行时被动态加载后,这些常量才有效。

CONNECTION_ABORTED (integer)

CONNECTION_NORMAL (integer)

CONNECTION_TIMEOUT (integer)

目录
connection_aborted -- Returns TRUE if client disconnected
connection_status -- Returns connection status bitfield
connection_timeout -- Return TRUE if script timed out
constant -- Returns the value of a constant
define -- Defines a named constant.
defined --  Checks whether a given named constant exists
die -- Equivalent to exit()
eval -- Evaluate a string as PHP code
exit -- Output a message and terminate the current script
get_browser --  Tells what the user's browser is capable of
highlight_file -- Syntax highlighting of a file
highlight_string -- Syntax highlighting of a string
ignore_user_abort --  Set whether a client disconnect should abort script execution
pack -- Pack data into binary string.
php_check_syntax --  Check the syntax of the specified file
php_strip_whitespace --  Return source with stripped comments and whitespace
show_source -- Alias of highlight_file()
sleep -- Delay execution
time_nanosleep --  Delay for a number of seconds and nano seconds
uniqid -- Generate a unique ID
unpack -- Unpack data from binary string
usleep -- Delay execution in microseconds