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# CXLVII. Unicode Functions

# 简介

Unicode Support.

警告
This extension is still in development and it isn't available to public yet.

# 需求

ICU 3.4 or later is required.

# 安装

First you should download and install ICU:

例子 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.

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token_name | 上一级 | unicode_encode