Unicode Support.
This extension is still in development and it isn't available to public yet.
» ICU 3.4 or later is required.
First you should download and install ICU:
Example#1 install ICU on Unix
./configure --disable-threads --enable-extras --enable-icuio --enable-layout make && make install
Then checkout latest PHP and configure it --with-icu-dir=<dir> option, where <dir> was the dir to where you installed ICU. You don't need to explicitly use this option if you install ICU to a standard location.
这些函数的行为受 php.ini 的影响。
| Name | Default | Changeable | Changelog |
|---|---|---|---|
| unicode.fallback_encoding | NULL | PHP_INI_ALL | Available since PHP 6.0.0. |
| unicode.from_error_mode | "2" | PHP_INI_ALL | Available since PHP 6.0.0. |
| unicode.from_error_subst_char | "3f" | PHP_INI_ALL | Available since PHP 6.0.0. |
| unicode.http_input_encoding | NULL | PHP_INI_ALL | Available since PHP 6.0.0. |
| unicode.output_encoding | NULL | PHP_INI_ALL | Available since PHP 6.0.0. |
| unicode.runtime_encoding | NULL | PHP_INI_ALL | Available since PHP 6.0.0. |
| unicode.script_encoding | NULL | PHP_INI_ALL | Available since PHP 6.0.0. |
| unicode.semantics | "0" | PHP_INI_SYSTEM | Available since PHP 6.0.0. |
以下是配置选项的简要解释。
Default encoding for output.
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。
| constant | value | description |
|---|---|---|
| U_INVALID_STOP | 0 | stop at first invalid character |
| U_INVALID_SKIP | 1 | skip invalid characters |
| U_INVALID_SUBSTITUTE | 2 | replace invalid characters |
| U_INVALID_ESCAPE | 3 | escape invalid characters |