php扩展开发mysql

#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "mysql.h"

static MYSQL *conn;

PHP_FUNCTION(connect_mysql)
{
    char *host, *user, *pass, *db;
    int host_len, user_len, pass_len, db_len;
    if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ssss", &host, &host_len, &user, &user_len, &pass, &pass_len, &db, &db_len) == FAILURE) {
        RETURN_FALSE;
    }

    conn = mysql_init(NULL);
    if (!mysql_real_connect(conn, host, user, pass, db, 0, NULL, 0)) {
        php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", mysql_error(conn));
        RETURN_FALSE;
    }

    RETURN_TRUE;
}

PHP_MINFO_FUNCTION(mysql_extension)
{
    php_info_print_table_start();
    php_info_print_table_header(2, "mysql_extension support", "enabled");
    php_info_print_table_end();
}

zend_function_entry mysql_extension_functions[] = {
    PHP_FE(connect_mysql, NULL)
    PHP_FE_END
};

zend_module_entry mysql_extension_module_entry = {
    STANDARD_MODULE_HEADER,
    "mysql_extension",
    mysql_extension_functions,
    NULL,
    NULL,
    NULL,
    NULL,
    PHP_MINFO(mysql_extension),
    "1.0",
    STANDARD_MODULE_PROPERTIES
};

#ifdef COMPILE_DL_MYSQL_EXTENSION
ZEND_GET_MODULE(mysql_extension)
#endif