PHP独立编译安装扩展（mysqli,pdo-mysql）

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1.环境说明：

系统：CentOS 6.3 64位 Linux
PHP版本：5.3.13
Mysql版本：5.5.26

PHP安装目录：/usr/local/php
PHP配置文件：/usr/local/php/etc/php.ini
PHP扩展目录：/usr/local/php/lib/php/extensions/no-debug-non-zts-20090624/
MySQL安装目录：/usr/local/mysql

php.ini:

1 2	; Directory in which the loadable extensions (modules) reside. extension_dir = "/usr/local/php/lib/php/extensions/no-debug-non-zts-20090624/"

2.编译安装扩展：

PHP扩展安装pdo_mysql模块，在Linux系统下进行，按以下步骤即可完成模块安装：

# tar -zxvf php-5.3.13.tgz
# cd php-5.3.13/ext/pdo_mysql
# /usr/local/php/bin/phpize
#  cp /usr/local/mysql/bin/mysql_config /usr/bin/mysql_config
# ./configure --with-php-config=/usr/local/php/bin/php-config --with-mysql-config=/usr/bin/mysql_config   --with-pdo-mysql=/usr/local/mysql   --enable-pdo=shared
# make && make install

备注：make test的时候会报错，但不影响编译安装的正常进行，可以忽略：

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===================================================================== PHP         : /usr/local/php/bin/php PHP_SAPI    : cli PHP_VERSION : 5.3.13 ZEND_VERSION: 2.2.0 PHP_OS      : Linux - CentOS 6.3 Linux X64 INI actual  : /usr/local/php/etc/php.ini More .INIs  :   CWD         : /usr/local/src/php/php-5.3.13/ext/pdo_mysql Extra dirs  : ===================================================================== Running selected tests. SKIP PDO MySQL Bug #33689 (query() execute() and fetch() return false on valid select queries) [tests/bug_33689.phpt] reason: SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) SKIP PDO MySQL Bug #37445 (Premature stmt object destruction) [tests/bug_37445.phpt] reason: SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) SKIP PDO MySQL Bug #39483 (Problem with handling of \ char in prepared statements) [tests/bug_39483.phpt] reason: SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) SKIP PDO MySQL Bug #41698 (float parameters truncated to integer in prepared statements) [tests/bug_41698.phpt] reason: SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) PHP Warning:  opendir(ext/pdo/tests): failed to open dir: No such file or directory in /usr/local/src/php/php-5.3.13/ext/pdo_mysql/run-tests.php on line 597 ERROR: cannot open directory: ext/pdo/tests make: [test] Error 1 (ignored)

PHP扩展安装mysqli模块，在Linux系统下进行，按以下步骤即可完成模块安装：

# tar -zxvf php-5.3.13.tgz

# cd php-5.3.13/ext/mysqli

# /usr/local/php/bin/phpize

# ./configure --with-php-config=/usr/local/php/bin/php-config  --with-mysqli= /usr/bin/mysql_config

# make && make install

配置过程报错：

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checking for mysql_set_server_option in -lmysqlclient... no configure: error: wrong mysql library version or lib not found. Check config.log for more information. configure: failed program was: | /* confdefs.h.  */ | | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | /* end confdefs.h.  */ | | /* Override any gcc2 internal prototype to avoid an error.  */ | #ifdef __cplusplus | extern "C" | #endif | /* We use char because int might match the return type of a gcc2 |    builtin and then its argument prototype would still apply.  */ | char mysql_set_server_option (); | int | main () | { | mysql_set_server_option (); |   ; |   return 0; | } configure:3473: result: no configure:3801: error: wrong mysql library version or lib not found. Check config.log for more information.

没有找到mysql库文件，说明mysql环境变量设置不正确或者mysql-devel库未安装。
yum -y install mysql-devel  或 源码编译安装mysql-devel



3.修改PHP配置文件

sed -i '/pdo_mysql.so/d' /usr/local/php/etc/php.ini
sed -i '/^extension_dir/a extension = "pdo_mysql"' /usr/local/php/etc/php.ini

sed -i '/mysqli.so/d' /usr/local/php/etc/php.ini

sed -i '/^extension_dir/a extension = "mysqli"' /usr/local/php/etc/php.ini

4.重启apache或nginx，让配置生效：
/usr/local/apache/bin/apachectl -k restart 或 /etc/init.d/httpd restart
/usr/local/nginx/sbin/nginx -s reload 或 /etc/init.d/nginx restart


备注：
在编译 php 的时候加上了 这个--with-mysqli=/usr/local/mysql/bin/mysql_config
所报错误是 configure: error: wrong mysql library version or lib not found
在编译的时候 直接 写--with-mysqli 不在添加路径，因为php本身有这个模块，不用再添加mysql 的配置文件路径。