安装php7的过程：
１.tar zxf php-x.x.x
２.Configure and build PHP. This is where you customize PHP with various options,
like which extensions will be enabled. Run ./configure --help for a list of available options.
In our example we'll do a simple configure with PHP-FPM and MySQL support.
cd ../php-x.x.x
./configure --enable-fpm --with-mysql
make
sudo make install

3.
Obtain and move configuration files to their correct locations

cp php.ini-development /usr/local/php/php.ini
cp /usr/local/etc/php-fpm.conf.default /usr/local/etc/php-fpm.conf
cp sapi/fpm/php-fpm /usr/local/bin

4.
It is important that we prevent Nginx from passing requests to the PHP-FPM backend
 if the file does not exists, allowing us to prevent arbitrarily script injection.
 vim /usr/local/php/php.ini
 cgi.fix_pathinfo=0
5.
php-fpm.conf must be modified to specify that
php-fpm must run as the user www-data and the group www-data before we can start the service:
vim /usr/local/etc/php-fpm.conf
; Unix user/group of processes
; Note: The user is mandatory. If the group is not set, the default user's group
;      will be used.
user = www-data
group = www-data

6.
The php-fpm service can now be started:
/usr/local/bin/php-fpm

7.
Nginx must now be configured to support the processing of PHP applications:
vim /usr/local/nginx/conf/nginx.conf
Modify the default location block to be aware it must attempt to serve .php files:

location / {
   root  html;
   index index.php index.html index.htm;
}

8. The next step is to ensure that .php files are passed to the PHP-FPM backend.
 Below the commented default PHP location block, enter the following:
location ~* \.php$ {
   fastcgi_index  index.php;
   fastcgi_pass   127.0.0.1:9000;
   include        fastcgi_params;
   fastcgi_param  SCRIPT_FILENAME   $document_root$fastcgi_script_name;
   fastcgi_param  SCRIPT_NAME       $fastcgi_script_name;
}

9.Restart Nginx.
sudo /usr/local/nginx/sbin/nginx -s stop
sudo /usr/local/nginx/sbin/nginx

10.Create a test file

错误一、在配置的时候会报错，需要安装libxml2-dev和libxml2包

错误二、另外启动的时候报错：
cp /root/php-7.0.0alpha1/sapi/fpm/php-fpm.conf /usr/local/etc/php-fpm.conf
错误三、
ERROR: Unable to globalize '/usr/local/NONE/etc/php-fpm.d/*.conf' (ret = 2) from /usr/local/etc/php-fpm.conf at line 125.
ERROR: failed to load configuration file '/usr/local/etc/php-fpm.conf'
ERROR: FPM initialization failed

Edit /usr/local/etc/php-fpm.conf document introduced * .conf part,
change to the correct path include = / usr / local / etc / php-fpm.d / *. Conf
If there is no /usr/local/etc/php-fpm.d directory, create the directory.

错误四：
WARNING: Nothing matches the include pattern '/usr/local/etc/php-fpm.d/*.conf' from /usr/local/etc/php-fpm.conf at line 125.
ERROR:. No pool defined at least one pool section must be specified in config file
ERROR: failed to post process the configuration
ERROR: FPM initialization failed

cp www.conf.default www.conf

错误五：
ERROR: [pool www] can not get gid for group 'nobody'
ERROR: FPM initialization failed

Www.conf open files, user and group users into nginx default settings, usually the default is www-data.

增加配置：
php-fpm.conf中：
[global]
; Note: the default prefix is /usr/local/php/var
error_log = log/php_error_log
[www]
catch_workers_output = yes

php.ini中：

log_errors = On
error_log = "/usr/local/php/var/log/error_log"
error_reporting=E_ALL&~E_NOTICE

 

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