Table of Contents
Articles you may be interested in:
Home Backend Development PHP Tutorial PHP database operation class based on pdo

PHP database operation class based on pdo

Jun 22, 2018 pm 05:10 PM
mysql oracle pdo php sqlserver database

This article mainly introduces PHP's pdo-based database operation class, which can realize basic database connections, additions, deletions, modifications, and closing connections. It also supports operations on mysql, sqlserver, oracle and other databases. Friends who need it can Refer to the following

The example of this article describes the PHP database operation class based on pdo. Share it with everyone for your reference, the details are as follows:

This class is used when operating sqlserver and oracle at work. At that time, it was improved on the basis of others. Now I will share it


1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

378

379

380

381

382

383

384

385

386

387

388

389

390

391

392

393

394

395

396

397

398

399

400

401

402

403

404

405

406

407

408

409

410

411

412

413

414

415

416

<?php

class Pdodb{

  protected $pdo;

  protected $res;

  protected $config;

  /*构造函数*/

  function __construct($config){

    $this->Config = $config;

    $this->connect();

  }

  /*数据库连接*/

  public function connect(){

    try {

       $this->pdo= new PDO($this->Config[&#39;dsn&#39;], $this->Config[&#39;username&#39;], $this->Config[&#39;password&#39;]);//$dbh = new PDO(&#39;mysql:host=localhost;dbname=test&#39;, $user, $pass);

       $this->pdo->query("set names utf8");

    }catch(Exception $e){

      echo &#39;数据库连接失败,详情: &#39; . $e->getMessage () . &#39; 请在配置文件中数据库连接信息&#39;;

      exit ();

    }

    /*

    if($this->Config[&#39;type&#39;]==&#39;oracle&#39;){

      $this->pdo->query("set names {$this->Config[&#39;charset&#39;]};");

    }else{

      $this->pdo->query("set names {$this->Config[&#39;charset&#39;]};");

    }

    */

    //把结果序列化成stdClass

    //$this->pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_OBJ);

    //自己写代码捕获Exception

    //$this->pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    $this->pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);//属性名 属性值 数组以关联数组返回

  }

  /*数据库关闭*/

  public function close(){

    $this->pdo = null;

  }

  //用于有记录结果返回的操作,特别是SELECT操作

  public function query($sql,$return=false){

    $res = $this->pdo->query($sql);

    if($res){

      $this->res = $res; // 未返回 return $this->res;

    }

    if($return){

      return $res;

    }

  }

  //主要是针对没有结果集合返回的操作,比如INSERT、UPDATE、DELETE等操作

  public function exec($sql,$return=false){

    $res = $this->pdo->exec($sql);

    if($res){

      $this->res = $res;

    }

    if($return){//返回操作是否成功 成功返回1 失败0

      return $res;

    }

  }

  //将$this->res以数组返回(全部返回)

  public function fetchAll(){

    return $this->res->fetchAll();

  }

  //将$this->res以数组返回(一条记录)

  public function fetch(){

    return $this->res->fetch();

  }

  //返回所有字段

  public function fetchColumn(){

    return $this->res->fetchColumn();

  }

  //返回最后插入的id

  public function lastInsertId(){

    return $this->res->lastInsertId();

  }

  //返回最后插入的id

  public function lastInsertId2(){

    return $this->pdo->lastInsertId();

  }

  /**

  * 参数说明

  * string/array $table 数据库表,两种传值模式

  * 普通模式:

  * &#39;tb_member, tb_money&#39;

  * 数组模式:

  * array(&#39;tb_member&#39;, &#39;tb_money&#39;)

  * string/array $fields 需要查询的数据库字段,允许为空,默认为查找全部,两种传值模式

  * 普通模式:

  * &#39;username, password&#39;

  * 数组模式:

  * array(&#39;username&#39;, &#39;password&#39;)

  * string/array $sqlwhere 查询条件,允许为空,两种传值模式

  * 普通模式(必须加上and,$sqlwhere为空 1=1 正常查询):

  * &#39;and type = 1 and username like "%os%"&#39;

  * 数组模式:

  * array(&#39;type = 1&#39;, &#39;username like "%os%"&#39;)

  * string $orderby 排序,默认为id倒序

  *int $debug 是否开启调试,开启则输出sql语句

  * 0 不开启

  * 1 开启

  * 2 开启并终止程序

  * int $mode 返回类型

  * 0 返回多条记录

  * 1 返回单条记录

  * 2 返回行数

  */

  public function select($table, $fields="*", $sqlwhere="", $orderby="", $debug=0, $mode=0){

    //参数处理

    if(is_array($table)){

      $table = implode(&#39;, &#39;, $table);

    }

    if(is_array($fields)){

      $fields = implode(&#39;,&#39;,$fields);

      /*

      if($this->Config[&#39;type&#39;]==&#39;oracle&#39;){

        //$fields = implode(&#39;,&#39;,$fields);//CUSTOMER_ID,FIRST_NAME,LAST_NAME,EMAIL

        //$fields = implode(",&#39;UTF8&#39;,&#39;ZHS16GBK&#39;) ,convert(",$fields);

        //$fields="convert(".$fields.",&#39;UTF8&#39;,&#39;ZHS16GBK&#39;)";

      }else{

        $fields = implode(&#39;,&#39;,$fields);

      }

      */

    }

    if(is_array($sqlwhere)){

      $sqlwhere = &#39; and &#39;.implode(&#39; and &#39;, $sqlwhere);

    }

    //数据库操作

    if($debug === 0){

      if($mode === 2){ //统计

        $this->query("select count(*) from $table where 1=1 $sqlwhere");

        $return = $this->fetchColumn();

      }else if($mode === 1){ //返回一条

        $this->query("select $fields from $table where 1=1 $sqlwhere $orderby");

        $return = $this->fetch();

      }else{

        $this->query("select $fields from $table where 1=1 $sqlwhere $orderby");

        $return = $this->fetchAll();//如果 $this->res为空即sql语句错误 会提示Call to a member function fetchAll() on a non-object

      }

      return $return;

    }else{

        if($mode === 2){

          echo "select count(*) from $table where 1=1 $sqlwhere";

        }else if($mode === 1){

          echo "select $fields from $table where 1=1 $sqlwhere $orderby";

        }else{

          echo "select $fields from $table where 1=1 $sqlwhere $orderby";

        }

        if($debug === 2){

          exit;

        }

    }

  }

  /**

  * 参数说明

  * string/array $table 数据库表,两种传值模式

  * 普通模式:

  * &#39;tb_member, tb_money&#39;

  * 数组模式:

  * array(&#39;tb_member&#39;, &#39;tb_money&#39;)

  * string/array $set 需要插入的字段及内容,两种传值模式

  * 普通模式:

  * &#39;username = "test", type = 1, dt = now()&#39;

  * 数组模式:

  * array(&#39;username = "test"&#39;, &#39;type = 1&#39;, &#39;dt = now()&#39;)

  * int $debug 是否开启调试,开启则输出sql语句

  * 0 不开启

  * 1 开启

  * 2 开启并终止程序

  * int $mode 返回类型

  * 0 无返回信息

  * 1 返回执行条目数

  * 2 返回最后一次插入记录的id

  */

  public function oic_insert($table, $set, $debug=0, $mode=0){

    //参数处理

    if(is_array($table)){

      $table = implode(&#39;, &#39;, $table);

    }

    if(is_array($set)){

      $s=&#39;&#39;;$i=0;

      foreach($set as $k=>$v){

        $i++;

        $s[$i]=$k;//,连接

        $val[$i]=$v;

      }

      $sarr=implode(",",$s);//去掉最后一个,

      //array_pop($sarr);

      $set=implode("&#39;,&#39;",$val);////15221579236&#39;,&#39;张三&#39;,&#39;&#39;,&#39;2001&#39;,&#39;8&#39;,&#39;4&#39;,&#39;女&#39;,&#39;是

      //$set = implode(&#39;, &#39;, $set);

    }

    //数据库操作

    if($debug === 0){

      if($mode === 2){

        $this->query("insert into $table ($sarr) values(&#39;".$set."&#39;)");

        //$return = $this->lastInsertId();

      }else if($mode === 1){

        $this->exec("insert into $table ($sarr) values(&#39;".$set."&#39;)");

        $return = $this->res;

      }else{

        $this->query("insert into $table ($sarr) values(&#39;".$set."&#39;)");

        $return = NULL;

      }

      return $return;

    }else{

      echo "insert into $table ($sarr) values(&#39;".$set."&#39;)";

      if($debug === 2){

        exit;

      }

    }

  }

  public function insert($table, $set, $debug=0, $mode=0){

    //参数处理

    if(is_array($table)){

      $table = implode(&#39;, &#39;, $table);

    }

    if(is_array($set)){

      $s=&#39;&#39;;

      foreach($set as $k=>$v){

        $s.=$k."=&#39;".$v."&#39;,";//,连接

      }

      $sarr=explode(&#39;,&#39;,$s);//去掉最后一个,

      array_pop($sarr);

      $set=implode(&#39;,&#39;,$sarr);

      //$set = implode(&#39;, &#39;, $set);

    }

    //数据库操作

    if($debug === 0){

      if($mode === 2){

        $this->query("insert into $table set $set");

        $return = $this->pdo->lastInsertId();

      }else if($mode === 1){

        $this->exec("insert into $table set $set");

        $return = $this->res;

      }else{

        $this->query("insert into $table set $set");

        $return = NULL;

      }

      return $return;

    }else{

      echo "insert into $table set $set";

      if($debug === 2){

        exit;

      }

    }

  }

  /**

  * 参数说明

  * string $table 数据库表,两种传值模式

  * 普通模式:

  * &#39;tb_member, tb_money&#39;

  * 数组模式:

  * array(&#39;tb_member&#39;, &#39;tb_money&#39;)

  * string/array $set 需要更新的字段及内容,两种传值模式

  * 普通模式:

  * &#39;username = "test", type = 1, dt = now()&#39;

  * 数组模式:

  * array(&#39;username = "test"&#39;, &#39;type = 1&#39;, &#39;dt = now()&#39;)

  * string/array $sqlwhere 修改条件,允许为空,两种传值模式

  * 普通模式:

  * &#39;and type = 1 and username like "%os%"&#39;

  * 数组模式:

  * array(&#39;type = 1&#39;, &#39;username like "%os%"&#39;)

  * int $debug 是否开启调试,开启则输出sql语句

  * 0 不开启

  * 1 开启

  * 2 开启并终止程序

  * int $mode 返回类型

  * 0 无返回信息

  * 1 返回执行条目数

  */

  public function update($table, $set, $sqlwhere="", $debug=0, $mode=0){

    //参数处理

    if(is_array($table)){

      $table = implode(&#39;, &#39;, $table);

    }

    if(is_array($set)){

      $s=&#39;&#39;;

      foreach($set as $k=>$v){

        $s.=$k."=&#39;".$v."&#39;,";

      }

      $sarr=explode(&#39;,&#39;,$s);//去掉最后一个,

      array_pop($sarr);

      $set=implode(&#39;,&#39;,$sarr);

      //$set = implode(&#39;, &#39;, $set);

    }

    if(is_array($sqlwhere)){

      $sqlwhere = &#39; and &#39;.implode(&#39; and &#39;, $sqlwhere);

    }

    //数据库操作

    if($debug === 0){

      if($mode === 1){

        $this->exec("update $table set $set where 1=1 $sqlwhere");

        $return = $this->res;

      }else{

        $this->query("update $table set $set where 1=1 $sqlwhere");

        $return = true;

      }

      return $return;

    }else{

      echo "update $table set $set where 1=1 $sqlwhere";

      if($debug === 2){

        exit;

      }

    }

  }

  /**

  * 参数说明

  * string $table 数据库表

  * string/array $sqlwhere 删除条件,允许为空,两种传值模式

  * 普通模式:

  * &#39;and type = 1 and username like "%os%"&#39;

  * 数组模式:

  * array(&#39;type = 1&#39;, &#39;username like "%os%"&#39;)

  * int $debug 是否开启调试,开启则输出sql语句

  * 0 不开启

  * 1 开启

  * 2 开启并终止程序

  * int $mode 返回类型

  * 0 无返回信息

  * 1 返回执行条目数

  */

  public function delete($table, $sqlwhere="", $debug=0, $mode=0){

    //参数处理

    if(is_array($sqlwhere)){

      $sqlwhere = &#39; and &#39;.implode(&#39; and &#39;, $sqlwhere); //是字符串需自己加上and

    }

    //数据库操作

    if($debug === 0){

      if($mode === 1){

        $this->exec("delete from $table where 1=1 $sqlwhere");

        $return = $this->res;

      }else{

        $this->query("delete from $table where 1=1 $sqlwhere");

        $return = NULL;

      }

      return $return;

    }else{

      echo "delete from $table where 1=1 $sqlwhere";

      if($debug === 2){

        exit;

      }

    }

  }

}

/*

sqlserver 配置 extension=php_pdo_mssql.dll和extension=php_pdo_sqlsrv.dll 安装对应的 ntwdblib.dll

http://msdn.microsoft.com/en-us/library/cc296170.aspx 下载php版本对应的sqlsrv扩展

sqlserver 配置 odbc连接需开启extension=php_pdo_odbc.dll

*/

$mssql2008_config=array(

  &#39;dsn&#39;=>&#39;odbc:Driver={SQL Server};Server=192.168.1.60;Database=his&#39;,//数据库服务器地址

  &#39;username&#39;=>&#39;sa&#39;,

  &#39;password&#39;=>&#39;xxxxx&#39;,

);

$mssql=new Pdodb($mssql2008_config);

$sql="select * from

(

  select row_number()over(order by tempcolumn)temprownumber,*

    from (

      select top 10 tempcolumn=0,a.*

      from DA_GR_HBFS a

      where 1=1

    ) t

) tt

where temprownumber>0";

$mssql->query($sql);

while($res=$mssql->fetch()){

  $data[]=$res;

}

print_r($data);exit;

//mysql 操作

$msyql_config=array(

  &#39;dsn&#39;=>&#39;mysql:host=localhost;dbname=talk&#39;,

  &#39;username&#39;=>&#39;root&#39;,

  &#39;password&#39;=>&#39;123456&#39;

);

$mysql=new PDO_DB($msyql_config);

$sql = &#39;SELECT user_id, user_name, nickname FROM et_users &#39;;

$mysql->query($sql);

$data=$mysql->fetchAll();

print_r($data);exit;

//oracle 操作

$oci_config=array(

  &#39;dsn&#39;=>&#39;oci:dbname=orcl&#39;,

  &#39;username&#39;=>&#39;BAOCRM&#39;,

  &#39;password&#39;=>&#39;BAOCRM&#39;

);

$oracle=new PDO_DB($oci_config);

//print_r($oracle);exit;//PDO_DB Object ( [pdo:protected] => PDO Object ( ) [res:protected] => [config:protected] => [Config] => Array ( [dsn] => oci:dbname=orcl [name] => PWACRM [password] => PWACRM ) )

$sql="select * from CUSTOMER_LEVEL t";

$oracle->query($sql);

$data=$oracle->fetchAll();

print_r($data);exit;

/*

Array

(

  [0] => Array

    (

      [LEVEL_ID] => 1

      [0] => 1

      [LEVEL_NAME] => 普通会员

      [1] => 普通会员

      [LEVEL_DETAIL] => 普通会员

      [2] => 普通会员

      [SORT_NUMBER] => 15

      [3] => 15

      [CREATE_TIME] => 12-7月 -12

      [4] => 12-7月 -12

      [CREATE_BY] => 1

      [5] => 1

      [UPDATE_TIME] => 12-7月 -12

      [6] => 12-7月 -12

      [UPDATE_BY] => 1

      [7] => 1

      [STATE] => 正常

      [8] => 正常

    )

)*/

?>

Copy after login

Articles you may be interested in:

Related content about mysql read-write separation implemented by PHP

PHP Method to compress multiple files into zip format and download them locally

Example of PHP method to recursively traverse folders to remove comments and compress php source code


The above is the detailed content of PHP database operation class based on pdo. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

The Continued Use of PHP: Reasons for Its Endurance The Continued Use of PHP: Reasons for Its Endurance Apr 19, 2025 am 12:23 AM

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

Oracle's Role in the Business World Oracle's Role in the Business World Apr 23, 2025 am 12:01 AM

Oracle is not only a database company, but also a leader in cloud computing and ERP systems. 1. Oracle provides comprehensive solutions from database to cloud services and ERP systems. 2. OracleCloud challenges AWS and Azure, providing IaaS, PaaS and SaaS services. 3. Oracle's ERP systems such as E-BusinessSuite and FusionApplications help enterprises optimize operations.

MySQL and phpMyAdmin: Core Features and Functions MySQL and phpMyAdmin: Core Features and Functions Apr 22, 2025 am 12:12 AM

MySQL and phpMyAdmin are powerful database management tools. 1) MySQL is used to create databases and tables, and to execute DML and SQL queries. 2) phpMyAdmin provides an intuitive interface for database management, table structure management, data operations and user permission management.

MySQL vs. Other Programming Languages: A Comparison MySQL vs. Other Programming Languages: A Comparison Apr 19, 2025 am 12:22 AM

Compared with other programming languages, MySQL is mainly used to store and manage data, while other languages ​​such as Python, Java, and C are used for logical processing and application development. MySQL is known for its high performance, scalability and cross-platform support, suitable for data management needs, while other languages ​​have advantages in their respective fields such as data analytics, enterprise applications, and system programming.

How to safely store JavaScript objects containing functions and regular expressions to a database and restore? How to safely store JavaScript objects containing functions and regular expressions to a database and restore? Apr 19, 2025 pm 11:09 PM

Safely handle functions and regular expressions in JSON In front-end development, JavaScript is often required...

The Compatibility of IIS and PHP: A Deep Dive The Compatibility of IIS and PHP: A Deep Dive Apr 22, 2025 am 12:01 AM

IIS and PHP are compatible and are implemented through FastCGI. 1.IIS forwards the .php file request to the FastCGI module through the configuration file. 2. The FastCGI module starts the PHP process to process requests to improve performance and stability. 3. In actual applications, you need to pay attention to configuration details, error debugging and performance optimization.

MongoDB vs. Oracle: Choosing the Right Database for Your Needs MongoDB vs. Oracle: Choosing the Right Database for Your Needs Apr 22, 2025 am 12:10 AM

MongoDB is suitable for unstructured data and high scalability requirements, while Oracle is suitable for scenarios that require strict data consistency. 1.MongoDB flexibly stores data in different structures, suitable for social media and the Internet of Things. 2. Oracle structured data model ensures data integrity and is suitable for financial transactions. 3.MongoDB scales horizontally through shards, and Oracle scales vertically through RAC. 4.MongoDB has low maintenance costs, while Oracle has high maintenance costs but is fully supported.

Explain the purpose of foreign keys in MySQL. Explain the purpose of foreign keys in MySQL. Apr 25, 2025 am 12:17 AM

In MySQL, the function of foreign keys is to establish the relationship between tables and ensure the consistency and integrity of the data. Foreign keys maintain the effectiveness of data through reference integrity checks and cascading operations. Pay attention to performance optimization and avoid common errors when using them.

See all articles