源码编译安装PHP7
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：
PHP7下载地址：https://downloads.php.net/~ab/
下载 php-7.0.0alpha1.tar.bz2
``` $ wget https://downloads.php.net/~ab/php-7.0.0alpha1.tar.bz2 $ tar jxf php-7.0.0alpha1.tar.bz2 $ ./configure ... ... checking size of long... (cached) 8 checking size of long long... (cached) 8 checking for iconv support... yes checking for iconv... no checking for libiconv... no configure: error: Please specify the install prefix of iconv with --with-iconv=<DIR> WangTomdeMacBook-Pro:php-7.0.0alpha1 wangtom$ ```
安装 libiconv (字符编码转换库)
网站地址: http://www.gnu.org/software/libiconv/
当前版本: http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.14.tar.gz
``` $ wget http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.14.tar.gz $ tar zxf libiconv-1.14.tar.gz $ cd libiconv-1.14 $ ./configure --prefix=/usr/local/lib/libiconv $ make $ sudo make install ```
配置参数
$ ./configure --prefix=/usr/local/php7 \ --with-config-file-path=/usr/local/php7/etc \ --with-iconv=/usr/local/lib/libiconv \
配置成功后，可以看到有如下结果：
``` ... ... Thank you for using PHP. config.status: creating php7.spec config.status: creating main/build-defs.h config.status: creating scripts/phpize config.status: creating scripts/man1/phpize.1 config.status: creating scripts/php-config config.status: creating scripts/man1/php-config.1 config.status: creating sapi/cli/php.1 config.status: creating sapi/cgi/php-cgi.1 config.status: creating ext/phar/phar.1 config.status: creating ext/phar/phar.phar.1 config.status: creating main/php_config.h config.status: executing default commands WangTomdeMacBook-Pro:php-7.0.0alpha1 wangtom$ ```
$ make $ make test $ sudo make install
查看是否安装成功： ```` WangTomdeMacBook-Pro:php-7.0.0alpha1 wangtom$ /usr/local/php7/bin/php -v PHP 7.0.0alpha1 (cli) (built: Jun 20 2015 00:04:19) Copyright (c) 1997-2015 The PHP Group Zend Engine v3.0.0-dev, Copyright (c) 1998-2015 Zend Technologies ```
参考链接：
http://php.net/archive/2015.php#id2015-06-11-3
[END]