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php中 mysqli, pdo 可以用 mysqlnd 或 libmysqlclient 實現

前者 從 php 5.3.0起已內置到php中, 并且支持更多的特性，推薦用 mysqlnd

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mysqlnd ， libmysqlclient 對比：
http://php.net/manual/en/mysqlinfo.library.choosing.php

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mysqlnd 目前是php源碼的一部分

http://php.net/manual/en/intro.mysqlnd.php

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php編譯參數：

// Recommended, compiles with mysqlnd $ ./configure --with-mysqli=mysqlnd --with-pdo-mysql=mysqlnd --with-mysql=mysqlnd// Alternatively recommended, compiles with mysqlnd as of PHP 5.4 $ ./configure --with-mysqli --with-pdo-mysql --with-mysql// Not recommended, compiles with libmysqlclient $ ./configure --with-mysqli=/path/to/mysql_config --with-pdo-mysql=/path/to/mysql_config --with-mysql=/path/to/mysql_config

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環境準備：

1、安裝 libmysqlclient

http://cdn.mysql.com/Downloads/Connector-C/mysql-connector-c-6.0.2.tar.gz

Change location to the top-level directory of the source distribution.

Generate the?Makefile:

shell> cmake -G "Unix Makefiles"

Or, for a Debug build:

shell> cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Debug

By default, the installation location for Connector/C is?/usr/local/mysql. To change this location, use theCMAKE_INSTALL_PREFIX?option to specify a different directory when generating the?Makefile. For example:

shell> cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=/opt/local/mysql

For other?CMake?options that you might find useful, see?Other Connector/C Build Options.

Build the project:

shell> make

As?root, install the Connector/C headers, libraries, and utilities:

root-shell> make install

?示例代碼：

//main.c //gcc main.c -o test -lmysqlclient// @link http://dev.mysql.com/doc/refman/5.6/en/c-api-function-overview.htm// libmysqlclient library #include <stdio.h> #include <stdlib.h> #include <mysql/mysql.h>MYSQL *get_conn() {//連接配置char *host = "127.0.0.1";char *user = "root";char *passwd = "";char *db = "test";int port = 3306;my_bool reconnect = 1;MYSQL *my_con = (MYSQL *)malloc( sizeof(MYSQL) ); //數據庫連接句柄//連接數據庫 mysql_init(my_con); mysql_options(my_con, MYSQL_OPT_RECONNECT, &reconnect);mysql_real_connect(my_con, host, user, passwd, db, port, NULL, CLIENT_FOUND_ROWS);mysql_query(my_con, "set names utf8");return my_con; }/*** 釋放空間，關閉連接* * @param mysql* @return */ void free_conn(MYSQL *mysql) {mysql_close(mysql);free(mysql); }//發生錯誤時，輸出錯誤信息，關閉連接，退出程序 void error_quit(const char *str, MYSQL *connection) {fprintf(stderr, "%s\n errno: %d\n error:%s\n sqlstat:%s\n",str, mysql_errno(connection),mysql_error(connection),mysql_sqlstate(connection));if( connection != NULL ){mysql_close(connection);}free(connection);exit(EXIT_FAILURE); }void insert(MYSQL *my_con) {int res;res = mysql_query(my_con, "INSERT INTO test(fid) VALUES(null)");if( res != 0 ){error_quit("Select fail", my_con);}printf("affected rows:%d \n", mysql_affected_rows(my_con));printf("last insertId :%d \n", mysql_insert_id(my_con));}void update(MYSQL *my_con) {int res;res = mysql_query(my_con, "UPDATE test SET FScore=119.10");if( res != 0 ){error_quit("Select fail", my_con);}printf("affected rows:%d \n", mysql_affected_rows(my_con));}void delete(MYSQL *my_con) {int res;res = mysql_query(my_con, "DELETE FROM test WHERE FID=31");if( res != 0 ){error_quit("Select fail", my_con);}printf("affected rows:%d \n", mysql_affected_rows(my_con));}void query(MYSQL *my_con) {MYSQL_RES *my_res; //查詢結果MYSQL_FIELD *my_field; //結果中字段信息MYSQL_ROW my_row; //結果中數據信息 unsigned long *lengths;int cols, res, i;//獲取整個表的內容 res = mysql_query(my_con, "SELECT * FROM test LIMIT 5");if( res != 0 ){error_quit("Select fail", my_con);} /*mysql_query , mysql_real_query 區別While a connection is active, the client may send SQL statements to the server using mysql_query() or mysql_real_query(). The difference between the two is that mysql_query() expects the query to be specified as a null-terminated string whereas mysql_real_query() expects a counted string. If the string contains binary data (which may include null bytes), you must use mysql_real_query(). *///從服務端取回結果 mysql_store_result 會把數據全部拉取到客戶端, mysql_use_result() 則不會my_res = mysql_store_result(my_con); // A MYSQL_RES result structure with the results. NULL (0) if an error occurred or has not result like deleteif( NULL == my_res ) //可以通過返回值來判斷是否是 select {error_quit("Get result fail", my_con);}// mysql_row_seek(), mysql_data_seek() , mysql_num_rows 只有在用mysql_store_result 才可以使用printf("num rows:%d \n", mysql_num_rows(my_res));//獲取表的列數cols = mysql_num_fields(my_res);printf("num cols:%d \n", cols);//獲取字段信息my_field = mysql_fetch_fields(my_res);for(i=0; i<cols; i++){printf("%s\t", my_field[i].name);}printf("\n");for(i=0; i<cols; i++){//字段類型printf("%d\t", my_field[i].type);}printf("\n");//輸出執行結果while( my_row = mysql_fetch_row(my_res) ){for(i=0; i<cols; i++){//數據長度lengths = mysql_fetch_lengths(my_res);printf("%s(%lu)\t", my_row[i], lengths[i]);}printf("\n");}mysql_free_result(my_res);}void status(MYSQL *my_con) {printf("mysql_get_server_info: %s \n", mysql_get_server_info(my_con));printf("mysql_stat: %s \n", mysql_stat(my_con));printf("mysql_get_proto_info: %u \n", mysql_get_proto_info(my_con));}int main(int argc, char *argv[]) {//連接數據庫MYSQL *my_con = get_conn();if( NULL == my_con ) {error_quit("Connection fail", my_con);}printf("Connection success \n");status(my_con);insert(my_con);delete(my_con);update(my_con);//select query(my_con);// free the memory free_conn(my_con);return EXIT_SUCCESS; }

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test.sql

/* Navicat MySQL Data TransferSource Server : localhost Source Server Version : 50524 Source Host : 127.0.0.1:3306 Source Database : testTarget Server Type : MYSQL Target Server Version : 50524 File Encoding : 936Date: 2015-09-16 15:02:57 */create DATABASE test;SET FOREIGN_KEY_CHECKS=0; -- ---------------------------- -- Table structure for `test` -- ---------------------------- DROP TABLE IF EXISTS `test`; CREATE TABLE `test` (`FID` int(11) NOT NULL AUTO_INCREMENT,`FTableName` char(60) NOT NULL DEFAULT '',`FFieldName` char(30) NOT NULL DEFAULT '',`FTemplate` char(30) NOT NULL DEFAULT '',`FScore` decimal(5,2) NOT NULL DEFAULT '0.00' COMMENT 'ио╩§',PRIMARY KEY (`FID`) ) ENGINE=MyISAM AUTO_INCREMENT=18 DEFAULT CHARSET=latin1;-- ---------------------------- -- Records of test -- ---------------------------- INSERT INTO test VALUES ('1', 'A', 'xx', 'TEMPALTE 1', '119.10'); INSERT INTO test VALUES ('2', 'B', 'jj', 'TEMPALTE 1', '119.10'); INSERT INTO test VALUES ('3', 'D', 'k', 'TEMPALTE 1', '119.10'); INSERT INTO test VALUES ('4', 'C', 'm', 'TEMPALTE 1', '119.10'); INSERT INTO test VALUES ('5', 'B', 'y', 'TEMPALTE 2', '119.10'); INSERT INTO test VALUES ('6', 'D', 'k', 'TEMPALTE 2', '119.10'); INSERT INTO test VALUES ('7', 'C', 'm', 'TEMPALTE 2', '119.10'); INSERT INTO test VALUES ('8', 'E', 'n', 'TEMPALTE 2', '119.10'); INSERT INTO test VALUES ('9', 'D', 'z', 'TEMPALTE 3', '119.10'); INSERT INTO test VALUES ('10', 'E', 'n', 'TEMPALTE 3', '119.10'); INSERT INTO test VALUES ('11', 'A', 'x', 'TEMPALTE 2', '119.10'); INSERT INTO test VALUES ('12', 'A', 'x', 'TEMPALTE 3', '119.10'); INSERT INTO test VALUES ('13', 'A', 'x', 'TEMPALTE 4', '119.10'); INSERT INTO test VALUES ('14', 'E', 'p', 'TEMPALTE 4', '119.10'); INSERT INTO test VALUES ('15', 'A', 'x', 'TEMPALTE 5', '119.10'); INSERT INTO test VALUES ('16', 'C', 'q', 'TEMPALTE 5', '119.10'); INSERT INTO test VALUES ('17', '', '', '', '119.10');

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參考文檔：http://dev.mysql.com/doc/refman/5.6/en/c-api-function-overview.html

?http://www.linuxfocus.org/ChineseGB/September2003/article304.shtml#304lfindex3

轉載于:https://www.cnblogs.com/siqi/p/4810369.html

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