首先安裝mysqli擴充套件

cd /usr/local/src/php-7.17/ext/
cd mysqli
/usr/local/php/bin/phpize

./configure --prefix=/usr/local/related/mysqli --with-php-config=/usr/local/php/bin/php-config --with-mysqli=/usr/local/mysql/bin/mysql_config

make時提示這個錯誤:

/usr/local/src/php-7.1.7/ext/mysqli/mysqli_api.c:36:47: 致命錯誤：ext/mysqlnd/mysql_float_to_double.h：沒有那個檔案或目錄
 #include "ext/mysqlnd/mysql_float_to_double.h"
這是因為當前是在mysqli這個目錄下進行的編譯，這個目錄下是肯定沒有ext/mysqlnd/mysql_float_to_double.h這個目錄及檔案的，知道了問題的原因那麼解決就簡單了
cd /usr/local/src/php-7.17
在這個目錄下從新編譯安裝即可：
./ext/mysqli/configure --prefix=/usr/local/related/mysqli --with-php-config=/usr/local/php/bin/php-config --with-mysqli=/usr/local/mysql/bin/mysql_config
make && make install

此外還有兩種解決方案:
1,
/usr/local/src/php-7.17/ext/mysqli
# vi mysqli_api.c
把第36行的
#include "ext/mysqlnd/mysql_float_to_double.h"
修改為
#include "/usr/local/src/php-7.17/ext/mysqlnd/mysql_float_to_double.h"

2,
,ln -s mysql/include/* usr/include
ln -s php/include/* usr/include



當成功後會如下:
[

[email protected] php-7.1.7]# make install
Installing shared extensions:     /usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/
Installing header files:          /usr/local/php/include/php/

然後ls /usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/

[[email protected] php-7.1.7]# ls /usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/
mysqli.so  opcache.a  opcache.so
就看到mysqli.so
然後開啟php.ini
增加:extension=mysqli.so

然後編輯php.ini
extension=mysqli.so

重啟php-fpm

service php-fpm restart



make時如果提示:
Cannot find autoconf. Please check your autoconf installation and the
$PHP_AUTOCONF environment variable. Then, rerun this script.
則說明沒有安裝antoconf,安裝即可：
cd /usr/local/src
# wget http://ftp.gnu.org/gnu/autoconf/autoconf-2.62.tar.gz
# tar -zvxf autoconf-2.62.tar.gz
# cd autoconf-2.62/
# ./configure --prefix=/usr/local/related/autoconf M4=/usr/local/related/m4/bin/m4   --如果不指定M4的地址，那麼需要把M4的bin目錄加入環境變數/etc/profile
make && make install

然後將autoconf/bin加入到環境變數再次執行/usr/local/php/bin/phpize就可以生成configure安裝檔案了

如果沒安裝m4則checking for GNU M4 that supports accurate traces... configure: error: no acceptable m4 could be found in $PATH.
GNU M4 1.4.5 or later is required; 1.4.11 is recommended
：

# cd /usr/local/src
# wget http://ftp.gnu.org/gnu/m4/m4-1.4.9.tar.gz
# tar -zvxf m4-1.4.9.tar.gz
# cd m4-1.4.9/
# ./configure --prefix=/usr/local/related/m4
 make && make install


或者yum安裝這兩個檔案
 yum install m4
 yum install autoconf



二，

安裝PDO擴充套件


cd /usr/local/src/php-7.1.7/ext
cd pdo_mysql

因為新開了一個xshell視窗，所以重新source /etc/profile，這是因為在其他視窗將autoconf新增到的環境變數，在這個視窗無法使用

然後/usr/local/php/bin/phpize 生成configure  檔案

./configure --prefix=/usr/local/related/pdo_mysql --with-php-config=/usr/local/php/bin/php-config --with-pdo-mysql=/usr/local/mysql   --這裡與安裝mysqli稍有不同，mysqli需要mysql_config的目錄，而PDO只指向mysql安裝目錄即可

make && make install

成功後:
Installing shared extensions:     /usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/

ls一下：

[

[email protected] pdo_mysql]# ls /usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/
mysqli.so  opcache.a  opcache.so  pdo_mysql.so


然後編輯php.ini
extension=pdo_mysql.so

重啟php-fpm

service php-fpm restart


三，

安裝mysqlnd 擴充套件

cp config9.m4 config.m4

./configure --prefix=/usr/local/related/mysqlnd

checking for pkg-config... /usr/bin/pkg-config
configure: error: Cannot find OpenSSL's <evp.h>

解決：
export PHP_OPENSSL_DIR=yes

./configure --prefix=/usr/local/related/mysqlnd --with-openssl-dir=

checking for CRYPTO_free in -lcrypto... no
configure: error: libcrypto not found!

其實第一步不需要解決（configure: error: Cannot find OpenSSL's <evp.h>）最終還是如下解決：

./configure --prefix=/usr/local/related/mysqlnd LDFLAGS=-L/usr/local/related/openssl/lib


所以還是需要看./configure --help

  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
              nonstandard directory <lib dir>
  LIBS        libraries to pass to the linker, e.g. -l<library>

應該是把LIBS 與 LDFLAGS弄混了

應該用LDFLAGS來指定未按標準安裝（也就是預設路徑安裝）的軟體的庫位置

最後：
make && make install

[

[email protected] mysqlnd]# make install
Installing shared extensions:     /usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/
Installing header files:          /usr/local/php/include/php/

ls 看下:

[[email protected] mysqlnd]# ls /usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/
mysqli.so  mysqlnd.so  opcache.a  opcache.so  pdo_mysql.so

同樣修改php.ini即可
extension=mysqlnd.so

重啟php-fpm

service php-fpm restart

因為mysqlnd並不是一個php的擴充套件，所以會報錯：

NOTICE: PHP message: PHP Warning:  PHP Startup: Invalid library (maybe not a PHP library) 'mysqlnd.so' in Unknown on line 0


最後猜測這個mysqlnd不用安裝也行，只要在php.ini裡指定好mysql.sock的位置即可：大約在1023行

pdo_mysql.default_socket=/usr/local/mysql/mysql.sock

當然還有mysqi的，大約在1173行
mysqli.default_socket =/usr/local/mysql/mysql.sock

這樣php即可與mysql進行通訊