为什么无法连接到mysql？

D T 发表于 Dev

这是我的代码在Xampp的本地PC上可以正常工作：

$this->dbh = new PDO('mysql:host=localhost;dbname=dbdata', 'root','123456');
$this->dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

phi.ini：

;extension=php_bz2.dll
;extension=php_curl.dll
;extension=php_fileinfo.dll
;extension=php_ftp.dll
;extension=php_gd2.dll
;extension=php_gettext.dll
;extension=php_gmp.dll
;extension=php_intl.dll
;extension=php_imap.dll
;extension=php_interbase.dll
;extension=php_ldap.dll
extension=php_mbstring.dll
;extension=php_exif.dll      ; Must be after mbstring as it depends on it
extension=php_mysqli.dll
;extension=php_oci8_12c.dll  ; Use with Oracle Database 12c Instant Client
;extension=php_odbc.dll
extension=php_openssl.dll
;extension=php_pdo_firebird.dll
extension=php_pdo_mysql.dll
;extension=php_pdo_oci.dll
;extension=php_pdo_odbc.dll
extension=php_pdo_pgsql.dll
;extension=php_pdo_sqlite.dll
extension=php_pgsql.dll
;extension=php_shmop.dll

但是，当我将其上传到服务器时：使用win server 2012，apache 2.4，php 7.1，发生了给定的错误：

PDOException：PDO :: __ construct（）：PHP是在没有openssl扩展的情况下构建的，无法发送加密的密码

C：\ Apache24 \ htdocs \ simsodep \ acwork \ class \ ACWDB.php：41堆栈跟踪：＃0 C：\ Apache24 \ htdocs \ simsodep \ acwork \ class \ ACWDB.php（41）：PDO-> __ construct（'mysql ：host = loca ...'，'root'，'123456'）＃1 C：\ Apache24 \ htdocs \ simsodep \ app \ model \ Home.php（21）：ACWDB-> __ construct（）＃2 C：\ Apache24 \ htdocs \ simsodep \ acwork \ class \ ACWController.php（164）：Home_model :: action_index（）＃3 C：\ Apache24 \ htdocs \ simsodep \ acwork \ class \ ACWController.php（32）：ACWController-> dispach（）＃4 C：\ Apache24 \ htdocs \ simsodep \ acwork \ class \ ACWCore.php（116）：ACWController-> main（NULL）＃5 C：\ Apache24 \ htdocs \ simsodep \ index.php（44）：ACWCore：：acwork（）＃6 {main}下一个PDOException：SQLSTATE [HY000] [1045]在C：\ Apache24 \ htdocs \ simsodep \ acwork \ class \中对用户'root'@'localhost'（使用密码：是）的访问被拒绝ACWDB.php：41堆栈跟踪：＃0 C：\ Apache24 \ htdocs \ simsodep \ acwork \ class \ ACWDB.php（41）：PDO-> __ construct（'mysql：host = loca ...'，'root'，'123456'）＃1 C：\ Apache24 \ htdocs \ simsodep \ app \ model \ Home.php（21）：ACWDB-> __ construct（）＃2 C：\ Apache24 \ htdocs \ simsodep \ acwork \ class \ ACWController.php（164）：Home_model :: action_index（）＃3 C：\ Apache24 \ htdocs \ simsodep \ acwork \ class \ ACWController.php（32）：ACWController-> dispach（）＃4 C：\ Apache24 \ htdocs \ simsodep \ acwork \ class \ ACWCore.php（116）：ACWController- > main（NULL）＃5 C：\ Apache24 \ htdocs \ simsodep \ index.php（44）：ACWCore :: acwork（）＃6 {main}action_index（）＃3 C：\ Apache24 \ htdocs \ simsodep \ acwork \ class \ ACWController.php（32）：ACWController-> dispach（）＃4 C：\ Apache24 \ htdocs \ simsodep \ acwork \ class \ ACWCore.php（ 116）：ACWController-> main（NULL）＃5 C：\ Apache24 \ htdocs \ simsodep \ index.php（44）：ACWCore :: acwork（）＃6 {main}action_index（）＃3 C：\ Apache24 \ htdocs \ simsodep \ acwork \ class \ ACWController.php（32）：ACWController-> dispach（）＃4 C：\ Apache24 \ htdocs \ simsodep \ acwork \ class \ ACWCore.php（ 116）：ACWController-> main（NULL）＃5 C：\ Apache24 \ htdocs \ simsodep \ index.php（44）：ACWCore :: acwork（）＃6 {main}