升级php

./configure  （加上自己所需要的 参数。可google一下）
make clear
make

make install

./configure --prefix=/usr/local/php  --with-zlib-dir --with-bz2 --with-tiff-dir --with-libxml-dir --with-gd --with-freetype-dir --with-jpeg-dir --with-png-dir --with-ttf --enable-mbstring --with-mysql=/usr/lib/mysql --with-config-file-path=/etc --disable-ipv6 --enable-gd-native-ttf