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LXXVIII. Miscellaneous Functions

简介

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

需求

要编译本扩展模块不需要外部库文件。

安装

本函数库作为 PHP 内核的一部分，不用安装就能使用。

运行时配置

这些函数的行为受 php.ini 的影响。

表格 1. Misc. Configuration Options

NameDefaultChangeableChangelog
ignore_user_abort"0"PHP_INI_ALL 
highlight.string"#DD0000"PHP_INI_ALL 
highlight.comment"#FF8000"PHP_INI_ALL 
highlight.keyword"#007700"PHP_INI_ALL 
highlight.bg"#FFFFFF"PHP_INI_ALL 
highlight.default"#0000BB"PHP_INI_ALL 
highlight.html"#000000"PHP_INI_ALL 
browscapNULLPHP_INI_SYSTEM 
有关 PHP_INI_* 常量进一步的细节与定义参见附录 G。

以下是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

本扩展模块未定义任何资源类型。

预定义常量

以下常量由本扩展模块定义，因此只有在本扩展模块被编译到 PHP 中，或者在运行时被动态加载后才有效。

CONNECTION_ABORTED (integer)

CONNECTION_NORMAL (integer)

CONNECTION_TIMEOUT (integer)

__COMPILER_HALT_OFFSET__ (integer)

Added in PHP 5.1.

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
__halt_compiler --  Halts the compiler execution
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 PHP syntax of (and execute) the specified file
php_strip_whitespace --  Return source with stripped comments and whitespace
show_source -- 别名 highlight_file()
sleep -- Delay execution
time_nanosleep --  Delay for a number of seconds and nanoseconds
time_sleep_until --  Make the script sleep until the specified time
uniqid -- Generate a unique ID
unpack -- Unpack data from binary string
usleep -- Delay execution in microseconds
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SWFTextField上一级connection_aborted