Miscellaneous Functions

简介

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

要编译本扩展模块无需外部库文件。

本扩展模块作为 PHP 内核的一部分，无需安装即可使用。

这些函数的行为受 php.ini 的影响。

**Misc. Configuration Options**
Name	Default	Changeable	Changelog
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	Removed in PHP 6.0.0.
highlight.default	"#0000BB"	PHP_INI_ALL
highlight.html	"#000000"	PHP_INI_ALL
browscap	NULL	PHP_INI_SYSTEM

有关 PHP_INI_* 常量进一步的细节与定义参见php.ini 配置选项。

以下是配置选项的简要解释。

ignore_user_abort boolean

FALSE by default. If changed to TRUE scripts will not be terminated after a client has aborted their connection.

本扩展模块未定义任何资源类型。

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 — Check whether client disconnected
connection_status — Returns connection status bitfield
connection_timeout — Check if the 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
sys_getloadavg — Gets system load average
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