PHP中的MySQL使用--基于PDO

一、准备活动

PHP Data Object 数据库访问抽象层 统一各种数据库访问接口

1.查看PHP的配置信息

调用一个函数即可输出一个界面。默认PDO是支持MySQL的



如果不支持，在php.ini中打开选项即可


2.连接数据库
2.1：方式1 写死在代码里
|-- ---------------
$dsn = 'mysql:host=localhost;dbname=datatype';//数据源
$user = 'root';
$pwd = 'xxxxx';
$conn = new PDO($dsn, $user, $pwd);
var_dump($conn);//object(PDO)#1 (0) { }
复制代码

2.2：方式2 写一个文件决定数据库

---->[pdo/pdo_conn.php]------------------
$path = __DIR__.'config.txt';
$dsn = 'uri:file://' . $path . '';//数据源
$user = 'root';
$pwd = 'xxxxx';
$conn = new PDO($dsn, $user, $pwd);
var_dump($conn);//object(PDO)#1 (0) { }

---->[pdo/config.txt]------------------
mysql:dbname=datatype;host=localhost


3.执行语句exec() 创建表

不支持查询操作，返回受影响的行数。数据表使用此文中的pic表：MySQL指南之SQL语句基础

try {
    $dsn = 'mysql:host=localhost;dbname=datatype';//数据源
    $user = 'root';
    $pwd = 'toly';
    $conn = new PDO($dsn, $user, $pwd);
//---------------------建表--------------------------
    $sql_create_table = <<exec($sql_create_table);
    echo $len;//0
} catch (Exception $e) {
    $e->getMessage();
}

mysql> SHOW TABLES;
+--------------------+
| Tables_in_datatype |
+--------------------+
| php_pic     |
+--------------------+

mysql> DESC php_pic;
+------------+----------------------+------+-----+---------+----------------+
| Field      | Type   | Null | Key | Default | Extra   |
+------------+----------------------+------+-----+---------+----------------+
| id  | int(10) unsigned     | NO   | PRI | NULL    | auto_increment |
| pic_path   | varchar(120)  | NO   |     | NULL    |  |
| pic_length | int(10) unsigned     | YES  |     | 0|  |
| pic_mime   | tinyint(3) unsigned  | YES  |     | NULL    |  |
| pic_width  | smallint(5) unsigned | YES  |     | NULL    |  |
| pic_height | smallint(5) unsigned | YES  |     | NULL    |  |
+------------+----------------------+------+-----+---------+----------------+


二、增删改查
1.增加记录
//---------------------插入记录--------------------------
    $sql_insert = <<exec($sql_insert);
    echo $len;//5

---->[命令行]------------------
mysql> SELECt * FROM  php_pic;
+----+--------------------------------------+------------+----------+-----------+------------+
| id | pic_path | pic_length | pic_mime | pic_width | pic_height |
+----+--------------------------------------+------------+----------+-----------+------------+
|  1 | 30000x20000.jpg |  116342886 | 1 |     30000 |      20000 |
|  2 | 3000x2000.jpg   |    3404969 | 1 |      3000 |2000 |
|  3 | 300x200.jpg     |      99097 | 1 |300 | 200 |
|  4 | 30x20.jpg|      10158 | 1 | 30 |  20 |
|  5 | 6dc9e8455c47d964e1a8a4ef04cf9477.jpg |     236254 | 1 |974 | 319 |
+----+--------------------------------------+------------+----------+-----------+------------+


2.修改记录
//---------------------修改记录--------------------------
    $sql_update = <<exec($sql_update);//1
    
---->[命令行]------------------
mysql> SELECT * FROM  php_pic;
+----+--------------------------------------+------------+----------+-----------+------------+
| id | pic_path | pic_length | pic_mime | pic_width | pic_height |
+----+--------------------------------------+------------+----------+-----------+------------+
|  1 | 30000x20000.jpg |  116342886 | 1 |     30000 |      20000 |
|  2 | 3000x2000.jpg   |    3404969 | 1 |      3000 |2000 |
|  3 | 300x200.jpg     |      99097 | 1 |300 | 200 |
|  4 | 30x20.jpg|      10158 | 1 | 30 |  20 |
|  5 | 6dc9e8455c47d964e1a8a4ef04cf9477.jpg |     236254 | 1 |      2333 |      10086 |
+----+--------------------------------------+------------+----------+-----------+------------+


3.删除记录
//---------------------删除记录--------------------------
    $sql_delete = << 2500;
EOT;
    $len = $conn->exec($sql_delete);//2
    echo $len;
    
---->[命令行]------------------
mysql> SELECT * FROM  php_pic;
+----+--------------------------------------+------------+----------+-----------+------------+
| id | pic_path | pic_length | pic_mime | pic_width | pic_height |
+----+--------------------------------------+------------+----------+-----------+------------+
|  3 | 300x200.jpg     |      99097 | 1 |300 | 200 |
|  4 | 30x20.jpg|      10158 | 1 | 30 |  20 |
|  5 | 6dc9e8455c47d964e1a8a4ef04cf9477.jpg |     236254 | 1 |      2333 |      10086 |
+----+--------------------------------------+------------+----------+-----------+------------+



关于错误信息的获取


    $sql_delete = << 2500;
EOT;
    $len = $conn->exec($sql_delete);//2
    if ($len === false) {
 echo $conn->errorCode();
 echo "";
 $err= $conn->errorInfo();
 print_r($err);
    }
    
---->[命令行]------------------
mysql> DELETE FROM php_picXXX
    -> WHERe pic_width> 2500;
ERROR 1146 (42S02): Table 'datatype.php_picxxx' doesn't exist


4.查询操作：query() 方法

返回一个PDOStatement 对象,可以遍历获取数据


    $sql_query = <<query($sql_query);
    foreach ($res as $data) {
 print_r($data);
    }



打印出记录信息


    $sql_query = <<query($sql_query);
    foreach ($res as $data) {
 echo "id:" . $data["id"] . "
";
 echo "路径: " . $data["pic_path"] . "
";
 echo "大小: " . $data["pic_length"] . "
";
 echo "类型: " . $data["pic_mime"] . "
";
 echo "图片宽: " . $data["pic_width"] . "
";
 echo "图片高: " . $data["pic_height"] . "
";
 echo "";
    }


5.通过 prepare 方法 查询

$cursor = $conn->prepare($sql_query);//准备
$res = $cursor->execute();//执行
if ($res) {
    while ($data = $cursor->fetch()) {
 echo "id:" . $data["id"] . "
";
 echo "路径: " . $data["pic_path"] . "
";
 echo "大小: " . $data["pic_length"] . "
";
 echo "类型: " . $data["pic_mime"] . "
";
 echo "图片宽: " . $data["pic_width"] . "
";
 echo "图片高: " . $data["pic_height"] . "
";
 echo "";
    }
}



其中fetch可以传入参数，来控制结果的形式，下面举几个小例子


6.获取数据库连接属性
    $attr_arr = ['AUTOCOMMIT','ERRMODE','CASE','PERSISTENT','TIMEOUT','ORACLE_NULLS',
 'SERVER_INFO','SERVER_VERSION', 'CONNECTION_STATUS',
    ];
    foreach ($attr_arr as $attr) {
 $attr="PDO::ATTR_$attr";
 echo $attr . "----:";
 $attr = constant($attr);
 echo $conn->getAttribute($attr) . '
';
    }
//PDO::ATTR_AUTOCOMMIT----:1
//PDO::ATTR_ERRMODE----:0
//PDO::ATTR_CASE----:0
//PDO::ATTR_PERSISTENT----:
//PDO::ATTR_TIMEOUT----:
//Warning: PDO::getAttribute(): SQLSTATE[IM001]: Driver does not support this function: driver does not support that attribute in J:PHPtolypdopdo_conn.php on line 88
//
//PDO::ATTR_ORACLE_NULLS----:0
//PDO::ATTR_SERVER_INFO----:Uptime: 187237 Threads: 2 Questions: 969 Slow queries: 0 Opens: 2033 Flush tables: 1 Open tables: 1004 Queries per second avg: 0.005
//PDO::ATTR_SERVER_VERSION----:5.7.22
//PDO::ATTR_CONNECTION_STATUS----:localhost via TCP/IP

$conn->setAttribute(键，值) # 设置属性


三、结合表单进行数据库操作
1.前端界面与后端数据接收

---->[pdo/form.php]------------------------------



    
    添加页面


添加页面




---->[pdo/do_add_pic.php]------------------------------
';
echo $pic_length . '
';
echo $pic_mime . '
';
echo $pic_width . '
';
echo $pic_height . '
';


2.将表单信息插入数据库
$dsn = 'mysql:host=localhost;dbname=datatype';//数据源
$user = 'root';
$pwd = 'xxxxx';
$conn = new PDO($dsn, $user, $pwd);
$sql_insert = "INSERT INTO php_pic(pic_path,pic_length,pic_mime,pic_width,pic_height) VALUES
('$pic_path',$pic_length,$pic_mime,$pic_width,$pic_height);";
$exec = $conn->exec($sql_insert);//5

---->[命令行]------------------
mysql> SELECt * FROM  php_pic;
+----+--------------------------------------+------------+----------+-----------+------------+
| id | pic_path | pic_length | pic_mime | pic_width | pic_height |
+----+--------------------------------------+------------+----------+-----------+------------+
|  3 | 300x200.jpg     |      99097 | 1 |300 | 200 |
|  4 | 30x20.jpg|      10158 | 1 | 30 |  20 |
|  5 | 6dc9e8455c47d964e1a8a4ef04cf9477.jpg |     236254 | 1 |      2333 |      10086 |
|  6 | hello.jpg|  88 | 1 | 99 |  99 |
+----+--------------------------------------+------------+----------+-----------+------------+


3.查询操作并形成表格

---->[pdo/get_pic.php]------------------------------



    
    查询页面


查询页面




---->[pdo/do_find_pic.php]------------------------------
$pic_path = $_POST['pic_path'];
$pic_length = $_POST['pic_length'];
$dsn = 'mysql:host=localhost;dbname=datatype';//数据源
$user = 'root';
$pwd = 'toly';
$conn = new PDO($dsn, $user, $pwd);
$sql_query = <<prepare($sql_query);//准备
$res = $cursor->execute();//执行
if ($res) {
    $table = ""
    $table .= "";
    $table .= "";
    $table .= "";
    $table .= "";
    $table .= "";
    $table .= "";
    $table .= "";
    $table .= "";
    while ($data = $cursor->fetch()) {
 $table .= "";
 $table .= "";
 $table .= "";
 $table .= "";
 $table .= "";
 $table .= "";
 $table .= "";
 $table .= "";
    }
}
echo $table;

5.SQL注入

也就是用户故意在表单里写入sql语句，导致应用的行为异常，

解决方法很简单，也就是将用户的输入都变成字符串，特殊符号转义

echo $pic_path.'
';//'or 1=1 #
echo $conn->quote($pic_path);//''or 1=1 #'

$sql_query = <<
6.预处理方式的占位参数 放置SQL注入
$sql_query = <<prepare($sql_query);//准备
$res = $cursor->execute([':pic_path'=>$pic_path,':pic_length'=>$pic_length]);//执行



接下来的另一种占位形式可谓他乡遇故知啊，和Android一毛一样

$sql_query = <<prepare($sql_query);//准备
$res = $cursor->execute([$pic_path, $pic_length]);//执行


7.参数与变量的绑定

参数绑定到变量好处很明显,变动起来方便

$sql_insert = "INSERT INTO php_pic(pic_path,pic_length,pic_mime,pic_width,pic_height) VALUES
(:pic_path,:pic_length,:pic_mime,:pic_width,:pic_height);";
$state = $conn->prepare($sql_insert);
$state->bindParam(':pic_path', $pic_path, PDO::PARAM_STR);
$state->bindParam(':pic_length', $pic_length, PDO::PARAM_INT);
$state->bindParam(':pic_mime', $pic_mime, PDO::PARAM_INT);
$state->bindParam(':pic_width', $pic_width, PDO::PARAM_INT);
$state->bindParam(':pic_height', $pic_height, PDO::PARAM_INT);
$state->execute();

---->[命令行]------------------
mysql> SELECt * FROM  php_pic;
+----+--------------------------------------+------------+----------+-----------+------------+
| id | pic_path | pic_length | pic_mime | pic_width | pic_height |
+----+--------------------------------------+------------+----------+-----------+------------+
|  3 | 300x200.jpg     |      99097 | 1 |300 | 200 |
|  4 | 30x20.jpg|      10158 | 1 | 30 |  20 |
|  5 | 6dc9e8455c47d964e1a8a4ef04cf9477.jpg |     236254 | 1 |      2333 |      10086 |
|  6 | 30000x20000.jpg |  116342886 | 1 |     30000 |      20000 |
|  7 | 30000x20000.jpg |  116342886 | 1 |     30000 |  99 |
|  8 | 30000x20000.jpg |  116342886 | 1 | 99 |  99 |
|  9 | hello.jpg|  88 | 1 | 99 |  99 |
| 10 | card.png |3333 | 0 |      4567 |7889 |
+----+--------------------------------------+------------+----------+-----------+------------+


|--- 问号型的绑定
$sql_insert = "INSERT INTO php_pic(pic_path,pic_length,pic_mime,pic_width,pic_height) VALUES
(?,?,?,?,?);";
$state = $conn->prepare($sql_insert);
$state->bindParam(1, $pic_path, PDO::PARAM_STR);
$state->bindParam(2, $pic_length, PDO::PARAM_INT);
$state->bindParam(3, $pic_mime, PDO::PARAM_INT);
$state->bindParam(4, $pic_width, PDO::PARAM_INT);
$state->bindParam(5, $pic_height, PDO::PARAM_INT);
$state->execute();

---->[命令行]------------------
mysql> SELECt * FROM  php_pic;
+----+--------------------------------------+------------+----------+-----------+------------+
| id | pic_path | pic_length | pic_mime | pic_width | pic_height |
+----+--------------------------------------+------------+----------+-----------+------------+
|  3 | 300x200.jpg     |      99097 | 1 |300 | 200 |
|  4 | 30x20.jpg|      10158 | 1 | 30 |  20 |
|  5 | 6dc9e8455c47d964e1a8a4ef04cf9477.jpg |     236254 | 1 |      2333 |      10086 |
|  6 | 30000x20000.jpg |  116342886 | 1 |     30000 |      20000 |
|  7 | 30000x20000.jpg |  116342886 | 1 |     30000 |  99 |
|  8 | 30000x20000.jpg |  116342886 | 1 | 99 |  99 |
|  9 | hello.jpg|  88 | 1 | 99 |  99 |
| 10 | card.png |3333 | 0 |      4567 |7889 |
| 11 | toly.png |5543 | 0 |      4567 |7889 |
+----+--------------------------------------+------------+----------+-----------+------------+


8.绑定列

这样获取数据会比较方便些

$cursor = $conn->prepare($sql_query);//准备
$res = $cursor->execute([$pic_path, $pic_length]);//执行
$cursor->bindColumn(1, $id_col);
$cursor->bindColumn(2, $pic_path_col);
$cursor->bindColumn(3, $pic_length_col);
$cursor->bindColumn(4, $pic_mime_col);
$cursor->bindColumn(5, $pic_width_col);
$cursor->bindColumn(6, $pic_height_col);

if ($res) {
    $table = "
id pic_path pic_length pic_mime pic_width pic_height
" . $data["id"] . " " . $data["pic_path"] . " " . $data["pic_length"] . " " . $data["pic_mime"] . " " . $data["pic_width"] . " " . $data["pic_height"] . "

";
    $table .= "";
    $table .= "";
    $table .= "";
    $table .= "";
    $table .= "";
    $table .= "";
    $table .= "";
    $table .= "";
    while ($cursor->fetch()) {
 $table .= "";
 $table .= "";
 $table .= "";
 $table .= "";
 $table .= "";
 $table .= "";
 $table .= "";
 $table .= "";
    }
    echo $table;
}

四、封装PDO
1. 配置文件:pdo/config.php
---->[pdo/config.php]---------------------配置文件--------------

2.封装类：Pdor

属性和构造函数

class Pdor{
    private static $config = [];//配置
    private static $conn;//连接
    private static $pconn = false;//是否支持长连接
    private static $dbInfo;//数据信息
    private static $connected = false;//是否连接成功
    private static $PDOStatement;//PDOStatement
//---------- 单例模式------------------------
    private static $INSTANCE;
    static function getInstance()
    {
 if (self::$INSTANCE) {
     return self::$INSTANCE;
 } else {
     self::$INSTANCE = new self();
     return self::$INSTANCE;
 }
    }
    private function __construct($config = '')
//---------- 单例模式------------------------
 if (!class_exists("PDO")) {
     self::throwException("不支持PDO");
     return;
 }
 if (!is_array($config)) {//构造方法未传入配置 ，则使用配置文件构建$config变量
     $config = [
  'hostname' => DB_HOST,
  'hostport' => DB_PORT,
  'username' => DB_USER,
  'password' => DB_PWD,
  'database' => DB_NAME,
  'dbms' => DB_TYPE,
  'dsn' => DB_TYPE . ":host=" . DB_HOST . ";dbname=" . DB_NAME,
     ];
 }

 if (empty($config['hostname'])) {//构造方法未传入配置,无配置文件
     self::throwException("数据库未配置");
     return;
 }

 self::$config = $config;
 if (empty(self::$config['params'])) {//params属性为空
     self::$config['params'] = [];
 }

 if (!isset(self::$conn)) {//未连接
     $configs = self::$config;
     if (self::$pconn) {//设置是否正常长连接
  $configs['params'][constant("PDO::ATTR_PERSISTENT")] = true;
     }
     try {//连接数据库
  self::$conn = new PDO($configs['dsn'], $configs['username'], $configs['password']);
     } catch (Exception $e) {
  self::throwException($e->getMessage());
     }

     if (!self::$conn) {//没连上
  self::throwException("连接异常");
  return;
     }

     self::$conn->exec('SET NAMES ' . DB_CHARSET);//设置字符集
     self::$dbInfo['version'] = self::$conn->getAttribute(constant('PDO::ATTR_SERVER_VERSION'));
     self::$connected = true;
     unset($configs);

 }
    }

    
    private function throwException($err){
 echo " $err";
    }
}


2.查询所有封装
public function queryAll($sql = null){
    $this->query($sql);
    $res = self::$PDOStatement->fetchAll(constant("PDO::FETCH_ASSOC"));
    return $res;
}


public function query($sql = null){
    self::freeStateIfNotNull();
    $conn = self::$conn;
    if ($sql != null && $conn) {
   self::$querySQL = $sql;
 self::$PDOStatement = $conn->prepare($sql);
 $res = self::$PDOStatement->execute();
 self::ifErrorHandleSQL($sql);// 如果sql语句有误 打印
 return $res;
    }
}


private function freeStateIfNotNull(){
    if (!empty(self::$PDOStatement)) {
 self::$PDOStatement = null;
    }
}


private function ifErrorHandleSQL($sql){
    $err = empty(self::$PDOStatement) ? self::$conn : self::$PDOStatement;
    $errArr = $err->errorInfo();
    if ($errArr[0] != '00000') {
 $err = '错误码：' . $errArr[0] . '
' . 'SQL错误信息 ' . $errArr[2] . '
' . "ERROR ON : $sql";
 self::throwException($err);
 return false;
    }
}


3.使用

queryAll($sql);
print_r($all);



看一下错误的时候：可以自己定义错误的样式

$sql = 'SELECt * FROM php8_pic;';



4.查询一条

---->[Pdor::queryRow]-----------------

public function queryRow($sql = null){
    $this->query($sql);
    $res = self::$PDOStatement->fetch(constant("PDO::FETCH_ASSOC"));
    return $res;
}

|--- 使用
$sql_query_one = 'SELECt * FROM php_pic WHERe id=8;';
$one = $pdor->queryRow($sql_query_one);
print_r($one);


5.增删改封装 ： execute

此方法返回true/false

public function execute($sql = null)
{
    $conn = self::$conn;
    self::freeStateIfNotNull();
    if ($sql != null && $conn) {
 self::$PDOStatement = $conn->prepare($sql);
 $res = self::$PDOStatement->execute();
 self::ifErrorHandleSQL($sql);// 如果sql语句有误 打印
 return $res;
    }
    return false;
}


6.增删改封装 ： exec

此方法返回改变的条数rowCount，和插入时的lastInsertId，更新和删除lastInsertId=0;


public function exec($sql = null)
{
    $conn = self::$conn;
    if ($sql != null && $conn) {
 $len = $conn->exec($sql);//0
 self::ifErrorHandleSQL($sql);// 如果sql语句有误 打印
 return [
     'rowCount' => $len,
     'lastInsertId' => $conn->lastInsertId(),
 ];
    }
    return false;
}

|--- 使用-----------------------------
$sql_insert = <<exec($sql_insert);
print_r($all);



你以为这就结束了?is just start !

五、强封装
1.单个查询强封装

比如根据指定的键，我想查三列，


$all = $pdor->queryByKey('php_pic', 19, ['pic_path', 'pic_length', 'pic_width']);
print_r($all);

|---- 封装 -------------------------------

public function queryByKey($table, $id, $attrs = "*", $key = 'id'){
    $sql = "SELECt %s FROM %s WHERe $key = %d";
    $sql = sprintf($sql, $this->parseAttrs($attrs), $table, $id);
    return $this->queryRow(sprintf($sql));
}


private function parseAttrs($attrs){
    if (is_array($attrs)) {
 array_walk($attrs, array('libdbPdor', 'handleAttr'));
 $res = implode(',', $attrs);
    } else {
 $res = "*";
    }
    return $res;
}


public static function handleAttr(&$value){
    if ($value === '*' || strpos($value, "." !== false || strpos($value, "`") != false)) {
    } elseif (strpos($value, "`") == false) {
 $value = '`' . trim($value) . '`';
    }
    return $value;
}


2. WHERe、ORDER 、GROUP、HAVINg等语句的支持

来个链式调用装个13


$pdor->query('php_pic')->where("pic_height>500")->where("id>5")->where('pic_width>500')
    ->order('pic_width DESC')
    ->ok(['pic_path', 'pic_length', 'pic_width']);



封装起来也挺简单，不过感觉不怎么完美，有时间再推敲推敲

private $sql;
private $table = [];
private $where = [];
private $order = [];
private $having = [];
private $group;
public function submit($attrs = "*")
{
    $where = '';
    $order = '';
    $group = '';
    $having = '';
    $head = 'SELECt ' . $this->parseAttrs($attrs) . ' FROM ' . $this->table;
    if (!empty($this->where)) {
 $where = $where . " WHERe ";
    }
    foreach ($this->where as $str) {
 $where .= $str . ' AND ';
    }
    if (!empty($this->having)) {
 $having = $having . " HAVINg ";
    }
    foreach ($this->having as $str) {
 $having .= $str . ' AND ';
    }
    foreach ($this->order as $str) {
 $order .= " ORDER BY " . $str . ',';
    }
    $where = substr($where, 0, -4);
    $having = substr($having, 0, -4);
    $order = substr($order, 0, -1);
    if (!empty($this->group)) {
 $group = "GROUP BY " . $this->group;
    }
    $this->sql = $head . $where . $group . $having . $order . ";";
    return $this->queryAll($this->sql);
}
public function query($table)
{
    $this->table = $table;
    return $this;
}
public function group($attr)
{
    $this->group = $attr;
    return $this;
}
public function where($where)
{
    array_push($this->where, $where);
    return $this;
}
public function having($having)
{
    array_push($this->having, $having);
    return $this;
}
public function order($order)
{
    array_push($this->order, $order);
    return $this;
}


3.添加方法的数组形式封装
$data = [

    'pic_path' => 'hekko.png',
    'pic_length' => 1994,
    'pic_mime' => 0,
    'pic_width' => 3,
    'pic_height' => 28,
];

$pdor->add("php_pic", $data);


public function add($table, $data)
{
    $keys = array_keys($data);//获取键名
    array_walk($keys, array('libdbPdor', 'handleAttr'));
    $resK = join(",", $keys);
    $resV = array_values($data);
    foreach ($resV as &$v) {
 if (is_string($v)) {
     $v = "'" . $v . "'";
 }
    }
    $resV = join(",", $resV);
    $sql = "INSERT INTO {$table} ({$resK}) VALUES ({$resV});";
    echo $sql;
}


mysql> SELECt * FROM php_pic;
+----+--------------------------------------+------------+----------+-----------+------------+
| id | pic_path | pic_length | pic_mime | pic_width | pic_height |
+----+--------------------------------------+------------+----------+-----------+------------+
|  3 | 300x200.jpg     |      99097 | 1 |300 | 200 |
|  4 | 30x20.jpg|      10158 | 1 | 30 |  20 |
|  5 | 6dc9e8455c47d964e1a8a4ef04cf9477.jpg |     236254 | 1 |      2333 |      10086 |
|  6 | 30000x20000.jpg |  116342886 | 1 |     30000 |      20000 |
|  7 | 30000x20000.jpg |  116342886 | 1 |     30000 |  99 |
| 12 | 30000x20000.jpg |  116342886 | 1 |     30000 |      20000 |
| 13 | 3000x2000.jpg   |    3404969 | 1 |      3000 |2000 |
| 14 | 300x200.jpg     |      99097 | 1 |300 | 200 |
| 15 | 30x20.jpg|      10158 | 1 |      2333 |      10086 |
| 16 | 6dc9e8455c47d964e1a8a4ef04cf9477.jpg |     236254 | 1 |974 | 319 |
| 17 | 30000x20000.jpg |  116342886 | 1 |     30000 |      20000 |
| 18 | 3000x2000.jpg   |    3404969 | 1 |      3000 |2000 |
| 19 | 300x200.jpg     |      99097 | 1 |300 | 200 |
| 20 | 30x20.jpg|      10158 | 1 | 30 |  20 |
| 21 | 6dc9e8455c47d964e1a8a4ef04cf9477.jpg |     236254 | 1 |974 | 319 |
| 22 | hekko.png|1994 | 0 |  3 |  28 |
+----+--------------------------------------+------------+----------+-----------+------------+



本篇就这样，其他的，根据字符串拼接的套路自己去玩吧




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id pic_path pic_length pic_mime pic_width pic_height
" . $id_col . " " . $pic_path_col . " " . $pic_length_col . " " . $pic_mime_col . " " . $pic_width_col . " " . $pic_height_col . "

id	pic_path	pic_length	pic_mime	pic_width	pic_height
" . $data["id"] . "	" . $data["pic_path"] . "	" . $data["pic_length"] . "	" . $data["pic_mime"] . "	" . $data["pic_width"] . "	" . $data["pic_height"] . "