php+mysql实现数据分批插入

 1 <?php
 2 /**
 3  * Created by PhpStorm.
 4  * User: Soup
 5  * Date: 2016/12/29
 6  * Time: 21:04
 7  */
 8 
 9 $mysqli = new mysqli(‘localhost‘,‘root‘,‘123456‘,‘test‘);
10 
11 
12 
13 if ($mysqli->connect_error) {
14     die(‘Connect Error (‘ . $mysqli->connect_errno . ‘) ‘
15         . $mysqli->connect_error);
16 }
17 
18 /*
19  *@param $data array 要插入的数据
20  *@param $each int 每次插入的条数
21  */
22 function batchInsert($data,$each){
23 
24     $num = count($data);        // 数据总数
25     $step = ceil( $num/$each);  // insert执行总次数
26 
27 
28     $j = 1;
29     $s = $step;
30 
31     foreach ($data as $val){    // 目前仅仅是起到循环作用
32         if($j > $step) break;
33         $arr2 = array_slice($data, ($step - $s) * $each, $each);     // 每次取100条
34         $sql = "insert into batch VALUES ";
35         foreach($arr2 as $v){
36             $exist = $GLOBALS[‘mysqli‘]->query("select * from batch where number = ‘$v‘ limit 1 "); // 检查要插入的数据是否已存在
37             $row = $exist->fetch_array(MYSQLI_ASSOC);
38             if(empty($row)){
39                 $sql .= "(null,$v,now()),";     // 将sql语句拼接起来
40             }
41         }
42         $sql = rtrim($sql, ‘,‘);
43         $result =  $GLOBALS[‘mysqli‘]->query($sql);
44         echo $sql,‘<br>‘;
45 46 47         $j++;
48         $s--;
49     }
50     return $result;
51 }
52 
53 // 先测试简单的数字插入
54 for ($i = 1;$i <= 505;++$i){
55     $arr[$i] = $i;
56 }
57 
58 var_dump(batchInsert($arr,100));