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2015年6月11日,PHP官网发布消息,正式公开发布PHP7第一版的alpha版本.
PHP7特性:
PHP 7.0.0 Alpha 1使用新版的ZendEngine引擎,带来了许多新的特性,以下是不完全列表:
(1)性能提升:PHP7比PHP5.6性能提升了两倍。 Improved performance: PHP 7 is up to twice as fast as PHP 5.6
(2)全面一致的64位支持。 Consistent 64-bit support
(3)以前的许多致命错误,现在改成抛出异常。Many fatal errors are now Exceptions
(4)移除了一些老的不在支持的SAPI(服务器端应用编程端口)和扩展。Removal of old and unsupported SAPIs and extensions
(5)新增了空接合操作符。The null coalescing operator (??)
(6)新增加了结合比较运算符。Combined comparison Operator (<=>)
(7)新增加了函数的返回类型声明。Return Type Declarations
(8)新增加了标量类型声明。Scalar Type Declarations
(9)新增加匿名类。Anonymous Classes
php7安装笔记整理
# 安装mcrypt
yum install -y php-mcrypt libmcrypt libmcrypt-devel登录后复制
# 升级bison
cd /var/soft/wget http://ftp.gnu.org/gnu/bison/bison-2.6.4.tar.gztar -xvzf bison-2.6.4.tar.gz cd bison-2.6.4./configuremake && make install登录后复制
# 升级re2c,解决You will need re2c 0.13.4 or later if you want to regenerate PHP
parsers.错误
cd /var/soft/wget http://sourceforge.net/projects/re2c/files/re2c/0.13.5/re2c-0.13.5.tar.gz/downloadtar zxf re2c-0.13.5.tar.gz && cd re2c-0.13.5./configuremake && make install登录后复制
编译PHP7
# 创建目录mkdir -p /var/soft/php7cd /var/soft/php7# 下载源代码git clone http://git.php.net/repository/php-src.gitcd php-src./buildconf# 配置参数./configure --prefix=/usr/local/php7 \--with-config-file-path=/usr/local/php7/etc \--with-mcrypt=/usr/include \--with-mysql=mysqlnd \--with-mysqli=mysqlnd \--with-pdo-mysql=mysqlnd \--with-gd \--with-iconv \--with-zlib \--enable-xml \--enable-bcmath \--enable-shmop \--enable-sysvsem \--enable-inline-optimization \--enable-mbregex \--enable-fpm \--enable-mbstring \--enable-ftp \--enable-gd-native-ttf \--with-openssl \--enable-pcntl \--enable-sockets \--with-xmlrpc \--enable-zip \--enable-soap \--without-pear \--with-gettext \--enable-session \--with-curl \--with-jpeg-dir \--with-freetype-dir \--enable-opcache################################################################################## 编译安装php时出现 /encodings.c:101: undefined reference to `libiconv_close' 错误的解决方法# 在装php时出现以下的错误:# /root/Downloads/php-5.6.5/ext/xmlrpc/libxmlrpc/encodings.c:73: undefined reference to `libiconv_open'# /root/Downloads/php-5.6.5/ext/xmlrpc/libxmlrpc/encodings.c:81: undefined reference to `libiconv'# /root/Downloads/php-5.6.5/ext/xmlrpc/libxmlrpc/encodings.c:101: undefined reference to `libiconv_close'# /root/Downloads/php-5.6.5/ext/xmlrpc/libxmlrpc/encodings.c:101: undefined reference to `libiconv_close'# collect2: error: ld returned 1 exit status# make: *** [sapi/cli/php] Error 1# 根据php官网描述这是一个bug(https://bugs.php.net/bug.php?id=52611)。在configure以后要手动修改下Makefile文件,找到EXTRA_LIBS 在最后添加 -liconv 即可顺利通过# (大约在Makefile文件的104)# EXTRA_LIBS = -lcrypt -lz -lresolv -lcrypt -lrt -lmysqlclient -lmcrypt -lltdl -lpng -lz -ljpeg -lcurl -lz -lrt -lm -ldl -lnsl -lxml2 -lz -lm -ldl -lssl -lcrypto -lcurl -lxml2 -lz -lm -ldl -lfreetype -lmysqlclient -lz -lm -lssl -lcrypto -ldl -lxml2 -lz -lm -ldl -lxml2 -lz -lm -ldl -lcrypt -lxml2 -lz -lm -ldl -lxml2 -lz -lm -ldl -lxml2 -lz -lm -ldl -lxml2 -lz -lm -ldl -lssl -lcrypto -lcrypt -liconv################################################################################## 编译安装make && sudo make install登录后复制
# 配置
cp php.ini-production /usr/local/php7/etc/php.inicp sapi/fpm/init.d.php-fpm /etc/init.d/php7-fpmchmod +x /etc/init.d/php7-fpmcp /usr/local/php7/etc/php-fpm.conf.default /usr/local/php7/etc/php-fpm.confcp /usr/local/php7/etc/php-fpm.d/www.conf.default /usr/local/php7/etc/php-fpm.d/www.conf登录后复制
# 配置opcache
vim /usr/local/php7/etc/php.ini# 加入zend_extension=/usr/local/php7/lib/php/extensions/no-debug-non-zts-20141001/opcache.so# 启动/etc/init.d/php7-fpm start登录后复制
# 查看PHP版本
/usr/local/php7/bin/php -v登录后复制
结果:
PHP 7.0.0-dev (cli) (built: Mar 3 2015 10:02:26) Copyright (c) 1997-2015 The PHP GroupZend Engine v3.0.0-dev, Copyright (c) 1998-2015 Zend Technologies with Zend OPcache v7.0.4-dev, Copyright (c) 1999-2015, by Zend Technologies登录后复制
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