博主我用的是lnmp架构的amh4.2面板，如果自己安装的话，可能某些路径不一定一样，依葫芦画瓢应该也很简单~
目前最新版是5.6.14版本
首先wget一下php的源码压缩包
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| wget http://php.net/get/php-5.6.14.tar.bz2/from/a/mirror
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然后
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| tar zxvf php-5.6.14.tar.gz
cd php-5.6.14
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执行预编译
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| ./configure --prefix=/usr/local/php --enable-fpm --with-fpm-user=www --with-fpm-group=www --with-config-file-path=/etc --with-config-file-scan-dir=/etc/php.d --with-openssl --with-zlib --with-curl --enable-ftp --with-gd --with-jpeg-dir --with-png-dir --with-freetype-dir --enable-gd-native-ttf --enable-mbstring --enable-zip --with-iconv=/usr/local/libiconv --with-mysql=/usr/local/mysql --with-mysqli=/usr/local/mysql/bin/mysql_config --with-pdo-mysql=/usr/local/mysql --without-pear --disable-fileinfo --enable-opcache
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编译
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| make -j 3
make install
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（-j的意思是使用多核cpu，这样能让编译速度加快，不过容易导致ssh掉线，因为我的cpu是4核的，所以我这里4-1=3，留出一个线程这样不容易死机）
好了，这样就已经升级完毕了
我用的是amh面板，所以还要加几句：
找到 /usr/local/php/etc/ 目录
修改如下文件
php-fpm.conf
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| ;include=etc/fpm/*.conf
[global]
pid = run/php-fpm.pid
log_level = error
[www]
listen = /tmp/php-cgi.sock
listen.owner = www
listen.group = www
listen.mode = 0660
user = www
group = www
pm = static
pm.max_children = 25
pm.start_servers = 17
pm.min_spare_servers = 3
pm.max_spare_servers = 25
request_terminate_timeout = 10s
rlimit_files = 51200
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php-fpm-template.conf
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| [global]
pid = run/php-fpm.pid
log_level = error
[example]
listen = /tmp/php-cgi.sock
listen.owner = www
listen.group = www
listen.mode = 0660
user = www
group = www
pm = dynamic
pm.max_children = 25
pm.start_servers = 17
pm.min_spare_servers = 3
pm.max_spare_servers = 25
request_terminate_timeout = 10s
rlimit_files = 51200
chroot = amysql.com
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OK 完工~