mirror of
https://gitee.com/fastadminnet/framework.git
synced 2026-07-01 20:52:48 +08:00
93 lines
2.8 KiB
PHP
93 lines
2.8 KiB
PHP
<?php
|
|
// +----------------------------------------------------------------------
|
|
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
|
|
// +----------------------------------------------------------------------
|
|
// | Copyright (c) 2006~2015 http://thinkphp.cn All rights reserved.
|
|
// +----------------------------------------------------------------------
|
|
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
|
|
// +----------------------------------------------------------------------
|
|
// | Author: liu21st <liu21st@gmail.com>
|
|
// +----------------------------------------------------------------------
|
|
|
|
namespace think\db\driver;
|
|
use think\db\Driver;
|
|
|
|
/**
|
|
* mysql数据库驱动
|
|
*/
|
|
class Mysql extends Driver{
|
|
|
|
/**
|
|
* 解析pdo连接的dsn信息
|
|
* @access public
|
|
* @param array $config 连接信息
|
|
* @return string
|
|
*/
|
|
protected function parseDsn($config){
|
|
$dsn = 'mysql:dbname='.$config['database'].';host='.$config['hostname'];
|
|
if(!empty($config['hostport'])) {
|
|
$dsn .= ';port='.$config['hostport'];
|
|
}elseif(!empty($config['socket'])){
|
|
$dsn .= ';unix_socket='.$config['socket'];
|
|
}
|
|
if(!empty($config['charset'])){
|
|
$dsn .= ';charset='.$config['charset'];
|
|
}
|
|
return $dsn;
|
|
}
|
|
|
|
/**
|
|
* 取得数据表的字段信息
|
|
* @access public
|
|
*/
|
|
public function getFields($tableName) {
|
|
$this->initConnect(true);
|
|
list($tableName) = explode(' ', $tableName);
|
|
$sql = 'SHOW COLUMNS FROM `'.$tableName.'`';
|
|
$result = $this->query($sql);
|
|
$info = [];
|
|
if($result) {
|
|
foreach ($result as $key => $val) {
|
|
$info[$val['field']] = [
|
|
'name' => $val['field'],
|
|
'type' => $val['type'],
|
|
'notnull' => (bool) ($val['null'] === ''), // not null is empty, null is yes
|
|
'default' => $val['default'],
|
|
'primary' => (strtolower($val['key']) == 'pri'),
|
|
'autoinc' => (strtolower($val['extra']) == 'auto_increment'),
|
|
];
|
|
}
|
|
}
|
|
return $info;
|
|
}
|
|
|
|
/**
|
|
* 取得数据库的表信息
|
|
* @access public
|
|
*/
|
|
public function getTables($dbName='') {
|
|
$sql = !empty($dbName)?'SHOW TABLES FROM '.$dbName:'SHOW TABLES ';
|
|
$result = $this->query($sql);
|
|
$info = [];
|
|
foreach ($result as $key => $val) {
|
|
$info[$key] = current($val);
|
|
}
|
|
return $info;
|
|
}
|
|
|
|
/**
|
|
* 字段和表名处理
|
|
* @access protected
|
|
* @param string $key
|
|
* @return string
|
|
*/
|
|
protected function parseKey(&$key) {
|
|
$key = trim($key);
|
|
if(!preg_match('/[,\'\"\*\(\)`.\s]/',$key)) {
|
|
$key = '`'.$key.'`';
|
|
}
|
|
return $key;
|
|
}
|
|
|
|
}
|