作者：餘超 EMail：[email protected]
Facebook開源的Hiphop-php能將php編譯成C++程序，提高站點的運行效率,在github上有最新的hiphop-php的源代碼。
如下是Hiphop-php的作者Haiping Zhao(趙海平)對Hiphop的定義：
HipHop是一個源代碼轉換器。它將PHP代碼轉換爲高度優化的C++代碼，然後再使用g++編譯器編譯。它可以保持語義等效地執行源代碼，但犧牲了一些很少會使用到的功能，比如 eval()。爲了進一步的提升性能，HipHop包含一個code transformer，一個重新實現的PHP runtime系統，並利用這些性能的優化的優勢，對許多共同的PHP擴展進行了重寫。
編譯的時候碰到的很多問題，中間還有很多包需要裝，但基本上是按照wiki的步驟進行的：
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1. 安裝關聯庫，在編譯過程中還發現有其它包需要安裝請使用命令sudo yum -y install **安裝：
[yuchao@yuchao-Latitude-E5410 hiphop-php]$ls
bin CMake CMakeCache.txt CMakeFiles CMakeLists.txt configure doc LICENSE.PHP LICENSE.ZEND local phpt README.md src
[yuchao@yuchao-Latitude-E5410 hiphop-php]$pwd
/home/yuchao/dev/hiphop-php
[yuchao@yuchao-Latitude-E5410 hiphop-php]$sudo yum -y install git cmake boost pcre-devel libicu-devel\
libmcrypt-devel oniguruma-devel mysql-devel gd-devel boost-devel\
libxml2-devel libcap-devel binutils-devel flex bison\
expat-devel
=====================================================================================
2. 下載Hiphop-php安裝包，以及依賴庫libevent, curl，從二進制可執行文件能夠運行請求都依賴於這兩個庫。
1） 獲取Hiphop-php源代碼.
[yuchao@yuchao-Latitude-E5410 hiphop-php]$git clone git://github.com/facebook/hiphop-php.git
2） 獲取編譯所需要的各種庫,re2c,tbb,curl和libevent等等。
[yuchao@yuchao-Latitude-E5410 hiphop-php]$wget "http://downloads.sourceforge.net/project/re2c/re2c/0.13.5/re2c-0.13.5.tar.gz?use_mirror=cdnetworks-us-2"
[yuchao@yuchao-Latitude-E5410 hiphop-php]$wget "http://www.threadingbuildingblocks.org/uploads/77/142/2.2/tbb22_20090809oss_src.tgz"
[yuchao@yuchao-Latitude-E5410 hiphop-php]$wget "http://curl.haxx.se/download/curl-7.20.0.tar.bz2"
[yuchao@yuchao-Latitude-E5410 hiphop-php]$wget "http://www.monkey.org/~provos/libevent-1.4.13-stable.tar.gz"
3. 解壓縮以上下載的各種依賴包，gz包用xvzf而bz2包用xvjf
[yuchao@yuchao-Latitude-E5410 hiphop-php]$tar xvjf curl-7.20.0.tar.bz2
[yuchao@yuchao-Latitude-E5410 hiphop-php]$tar xvzf libevent-1.4.13-stable.tar.gz
[yuchao@yuchao-Latitude-E5410 hiphop-php]$tar xvzf re2c-0.13.5.tar.gz
[yuchao@yuchao-Latitude-E5410 hiphop-php]$tar xvzf tbb22_20090809oss_src.tgz
4. 安裝解壓出來的各種依賴包，編譯過程中如果出現錯誤，請自己根據提示信息拍錯，那樣你學到的東西更多。
1) 安裝Intel並行線程庫
[yuchao@yuchao-Latitude-E5410 hiphop-php]$cd tbb22_20090809oss
[yuchao@yuchao-Latitude-E5410 hiphop-php]$gmake
[yuchao@yuchao-Latitude-E5410 hiphop-php]$cp ./build/*_release/*.so.* /usr/lib/
[yuchao@yuchao-Latitude-E5410 hiphop-php]$ldconfig
[yuchao@yuchao-Latitude-E5410 hiphop-php]$cd ..
2) 安裝比lex更有效率的re2c嵌入式的詞法解析工具.
[yuchao@yuchao-Latitude-E5410 hiphop-php]$cd re2c-0.13.5
[yuchao@yuchao-Latitude-E5410 hiphop-php]$mkdir -p /usr/local/re2c
[yuchao@yuchao-Latitude-E5410 hiphop-php]$./configure –prefix=/usr/local/re2c
[yuchao@yuchao-Latitude-E5410 hiphop-php]$make && make install
[yuchao@yuchao-Latitude-E5410 hiphop-php]$cd ..
3) 安裝用於處理網絡IO,timer,signal的事件觸發機制處理庫libevent,
可以參考我的另一篇文章《libevent源碼分析》http://blog.csdn.net/cyberexp2008/article/details/5674693
[yuchao@yuchao-Latitude-E5410 hiphop-php]$cd libevent-1.4.13-stable
必須用hiphop-php/src/third_party/目錄下對應libevent版本號打好補丁。
[yuchao@yuchao-Latitude-E5410 hiphop-php]$cp ../hiphop-php/src/third_party/libevent-1.4.13.fb-changes.diff ./
[yuchao@yuchao-Latitude-E5410 hiphop-php]$patch -p1 < libevent-1.4.13.fb-changes.diff
[yuchao@yuchao-Latitude-E5410 hiphop-php]$./configure --prefix=/usr/local/libevent/
[yuchao@yuchao-Latitude-E5410 hiphop-php]$make && make install
[yuchao@yuchao-Latitude-E5410 hiphop-php]$cd ..
4) 安裝用於處理URL語法在命令行方式下工作的文件傳輸工具CURL，如需瞭解更多請自己Google之。
[yuchao@yuchao-Latitude-E5410 hiphop-php]$cd curl-7.20.0
同樣必須用hiphop-php/src/third_party/目錄下對應libcurl版本號打好補丁。
[yuchao@yuchao-Latitude-E5410 hiphop-php]$cp ../hiphop-php/src/third_party/libcurl.fb-changes.diff ./
[yuchao@yuchao-Latitude-E5410 hiphop-php]$patch -p1 < libcurl.fb-changes.diff
[yuchao@yuchao-Latitude-E5410 hiphop-php]$./configure --prefix=/usr/local/curl
[yuchao@yuchao-Latitude-E5410 hiphop-php]$make && make install
[yuchao@yuchao-Latitude-E5410 hiphop-php]$cd ..
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5. 接下來就開始安裝hiphop-php，在正式編譯之前，需要設置CMAKE_PREFIX_PATH,HPHP_HOME和HPHP_LIB環境變量
1) 設置環境變量，cmake查找libevent與curl時的路徑，如果設置不正確，我在編譯的過程中提示CMake Error: The following variables are used in this project, but they are set to NOTFOUND.Please set them or make sure they are set and tested correctly in the CMake files:
CCLIENT_INCLUDE_PATH (ADVANCED)的錯誤信息，請自己排錯。
[yuchao@yuchao-Latitude-E5410 hiphop-php]$export CMAKE_PREFIX_PATH=/usr/local/libevent/
[yuchao@yuchao-Latitude-E5410 hiphop-php]$export CMAKE_PREFIX_PATH=$CMAKE_PREFIX_PATH:/usr/local/curl/
2) 安裝hiphop-php
[yuchao@yuchao-Latitude-E5410 hiphop-php]$cd hiphop-php
[yuchao@yuchao-Latitude-E5410 hiphop-php]$git submodule init
[yuchao@yuchao-Latitude-E5410 hiphop-php]$git submodule update
[yuchao@yuchao-Latitude-E5410 hiphop-php]$export HPHP_HOME=`pwd`
[yuchao@yuchao-Latitude-E5410 hiphop-php]$export HPHP_LIB=`pwd`/bin
[yuchao@yuchao-Latitude-E5410 hiphop-php]$cmake .
[yuchao@yuchao-Latitude-E5410 hiphop-php]$make
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安裝完成之後，我們就可以開始使用hphp命令了，下面來簡單的測試一個php文件，代碼如下：
運行php編譯文件參考了文章如下：
https://github.com/facebook/hiphop-php/wiki/Running-HipHop
<?php
$i = 0;
for($j = 0; $j < 1000000; $j++)
$i += $j;
echo $i, "n";
?>
用hphp進行編譯:
[yuchao@yuchao-Latitude-E5410 hiphop-php]$hphp test.php --keep-tempdir=1 --log=3提示生成新的可執行文件
[yuchao@yuchao-Latitude-E5410 hiphop-php]$/tmp/hphp_c9sbnG/program
做一下運行時間對比：
[yuchao@yuchao-Latitude-E5410 hiphop-php]$time php test.php
499999500000
real 0m0.307s
user 0m0.299s
sys 0m0.007s
[yuchao@yuchao-Latitude-E5410 hiphop-php]$time /tmp/hphp_c9sbnG/program
499999500000
real 0m0.140s
user 0m0.076s
sys 0m0.006s
可以看到，經hiphop編譯後的php，執行時間幾乎快了一倍。特此聲明
參考文章：
[1]. http://www.ioncannon.net/programming/918/building-hiphop-php-for-fedora-12-on-64-bit-and-32-bit-systems/
[2]. https://github.com/facebook/hiphop-php/wiki/building-and-installing
[3]. https://github.com/facebook/hiphop-php/wiki/Installing-or-Building-HipHop-PHP-via-RPM-on-CentOS-5