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php8 pdo方式连接达梦数据库

下载php8 TS版本

下载地址：https://windows.php.net/download/

解压至：phpstudy目录下：phpstudy_pro\Extensions\php

将达梦安装目录下（D:\dmdbms\drivers\php_pdo）的 php80ts_dm.dll pdots_dm.dll dmdpi.dll 这三个文件复制到php的ext目录下（D:\BC\phpstudy_pro\Extensions\php\php8.0.25ts\ext）

php.ini中增加

5、到这里。dm 以及 pdo配置完成

tp6配置：
6.1 config/database文件中
在这里插入图片描述
6.2 vendor/topthink/think-orm/src/db/builder下创建Dm.php文件（根据网上的方法已修改为适用于tp6）

declare (strict_types = 1);// +----------------------------------------------------------------------// | ThinkPHP [ WE CAN DO IT JUST THINK ]// +----------------------------------------------------------------------// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )// +----------------------------------------------------------------------// | Author: liu21st // +----------------------------------------------------------------------namespace think\db\builder;use think\db\Builder;use think\db\Query;class Dm extends Builder{    protected $selectSql = 'SELECT * FROM (SELECT thinkphp.*, rownum AS numrow FROM (SELECT  %DISTINCT% %FIELD% FROM %TABLE%%JOIN%%WHERE%%GROUP%%HAVING%%ORDER%) thinkphp ) %LIMIT%%COMMENT%';        protected function parseLimit(Query $query, string $limit): string    {        $limitStr = '';        if (!empty($limit)) {            $limit = explode(',', $limit);            if (count($limit) > 1) {                $limitStr = "(numrow>" . $limit[0] . ") AND (numrow<=" . ($limit[0] + $limit[1]) . ")";            } else {                $limitStr = "(numrow>0 AND numrow<=" . $limit[0] . ")";            }        }        return $limitStr ? ' WHERE ' . $limitStr : '';    }        protected function parseLock(Query $query, $lock = false): string    {        if (!$lock) {            return '';        }        return ' FOR UPDATE NOWAIT ';    }        public function parseKey(Query $query, $key, bool $strict = false): string    {        $key = trim($key);        if (strpos($key, '->') && false === strpos($key, '(')) {            // JSON字段支持            list($field, $name) = explode($key, '->');            $key                = $field . '."' . $name . '"';        }        return $key;    }        protected function parseRand(Query $query): string    {        return 'DBMS_RANDOM.value';    }}

3 vendor/topthink/think-orm/src/db/connector下创建Dm.php（适用于tp6）

// +----------------------------------------------------------------------// | ThinkPHP [ WE CAN DO IT JUST THINK ]// +----------------------------------------------------------------------// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )// +----------------------------------------------------------------------// | Author: liu21st // +----------------------------------------------------------------------namespace think\db\connector;use PDO;use think\db\BaseQuery;use think\db\Connection;use think\db\PDOConnection;use think\db\ConnectionInterface;// class Dm extends Connectionclass Dm extends PDOConnection{        protected function parseDsn(array $config): string    {        // $dsn = 'dm:host=';        // if (!empty($config['hostname'])) {        //     //  dm Instant Client        //     $dsn .=  $config['hostname'] . ($config['hostport'] ? ':' . $config['hostport'] : '') . '/';        //     // $dsn .=  $config['hostname'];        // }        // if (!empty($config['charset'])) {        //     $dsn .= ';charset=' . $config['charset'];        // }        // return $dsn;        $dsn = "dm:host=".$config['hostname'];        return $dsn;    }        public function getFields(string $tableName): array    {        list($tableName) = explode(' ', $tableName);        $sql             = "select a.column_name,data_type,DECODE (nullable, 'Y', 0, 1) notnull,data_default, DECODE (A .column_name,b.column_name,1,0) pk from all_tab_columns a,(select column_name from all_constraints c, all_cons_columns col where c.constraint_name = col.constraint_name and c.constraint_type = 'P' and c.table_name = '" . strtoupper($tableName) . "' ) b where table_name = '" . strtoupper($tableName) . "' and a.column_name = b.column_name (+)";        // $pdo    = $this->query($sql, [], false, true);        // $result = $pdo->fetchAll(PDO::FETCH_ASSOC);        $pdo    = $this->getPDOStatement($sql);        $result = $pdo->fetchAll(PDO::FETCH_ASSOC);        $info   = [];        if ($result) {            foreach ($result as $key => $val) {                $val                       = array_change_key_case($val);                $info[$val['column_name']] = [                    'name'    => $val['column_name'],                    'type'    => $val['data_type'],                    'notnull' => $val['notnull'],                    'default' => $val['data_default'],                    'primary' => $val['pk'],                    'autoinc' => $val['pk'],                ];            }        }        return $this->fieldCase($info);    }        public function getTables(string $dbName = ''): array    {        $sql    = 'select table_name from all_tables';        // $pdo    = $this->query($sql, [], false, true);        // $result = $pdo->fetchAll(PDO::FETCH_ASSOC);        $pdo    = $this->getPDOStatement($sql);        $result = $pdo->fetchAll(PDO::FETCH_ASSOC);        $info   = [];        foreach ($result as $key => $val) {            $info[$key] = current($val);        }        return $info;    }        // public function getLastInsID($sequence = null)    public function getLastInsID(BaseQuery $query, string $sequence = null)    {        $pdo      = $this->linkID->query("select {$sequence}.currval as id from dual");        $insertId = $pdo->fetchColumn();        return $this->autoInsIDType($query, $insertId);    }        protected function getExplain(string $sql)    {        return [];    }    protected function supportSavepoint(): bool    {        return true;    }}