1.安装 PHP
1.1 下载源码包
http://php.net/get/php-5.6.35.tar.bz2/from/a/mirror
1.2 编译&安装
./configure --prefix=/usr/local/php-5.6. --with-config-file-path=/usr/local/php-5.6./etc --with-bz2 --with-curl --enable-ftp \
--enable-sockets --disable-ipv6 --with-gd --with-jpeg-dir --with-png-dir --with-freetype-dir --enable-gd-native-ttf --with-iconv-dir \
--enable-mbstring --enable-calendar --with-gettext --with-libxml-dir --with-zlib --with-pdo-mysql=mysqlnd --with-mysqli=mysqlnd \
--with-mysql=mysqlnd --enable-dom --enable-xml --enable-fpm
make & make install
1.3 出现的错误处理
提示错误：crun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
处理方法 ：
xcode-select --install
提示错误：Cannot locate header file libintl.h
处理方法 ：
brew install gettext
brew link --force gettext
echo 'export PATH="/usr/local/opt/gettext/bin:$PATH"' >> ~/.zshrc
编辑 configure 文件，将
for i in $PHP_GETTEXT /usr/local /usr; do
修改为：
for i in $PHP_GETTEXT /usr/local /usr /usr/local/opt/gettext; do
提示错误：Please reinstall the iconv library
处理方法 ：
wget http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.15.tar.gz
tar xvzf libiconv-1.15.tar.gz
./configure
make && make install