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HomeBackend DevelopmentPHP Tutorialphp reads txt file and inserts data into database

今天测试一个功能,需要往数据库中插入一些原始数据,PM给了一个txt文件,如何快速的将这个txt文件的内容拆分为所要的数组,然后再插入到数据库中?

serial_number.txt的示例内容:

serial_number.txt:

DM00001A11 0116,
SN00002A11 0116,
AB00003A11 0116,
PV00004A11 0116,
OC00005A11 0116,
IX00006A11 0116,

创建数据表:

create table serial_number(
id int primary key auto_increment not null,
serial_number varchar(50) not null
)ENGINE=InnoDB DEFAULT CHARSET=utf8;

php代码如下:

$conn = mysql_connect('127.0.0.1','root','') or die("Invalid query: " . mysql_error());
mysql_select_db('test', $conn) or die("Invalid query: " . mysql_error());

$content = file_get_contents("serial_number.txt");
$c//explode()函数以","为标识符进行拆分

foreach ($contents as $k => $v)//遍历循环
{
  $id = $k;
  $serial_number = $v;
  mysql_query("insert into serial_number (`id`,`serial_number`)
      VALUES('$id','$serial_number')");
}

备注:方法有很多种,我这里是在拆分txt文件为数组后,然后遍历循环得到的数组,每循环一次,往数据库中插入一次。

再给大家分享一个支持大文件导入的

';
}else {
  echo 'Failed!--Error:'.array_shift($result).'<br>';
}
/*sqlda ta1.txt
1|0|A
2|1|B
3|1|C
4|2|D

-- cengji
CREATE TABLE `cengji` (
 `id` int(11) NOT NULL AUTO_INCREMENT,
 `parentid` int(11) NOT NULL,
 `name` varchar(255) DEFAULT NULL,
 PRIMARY KEY (`id`),
 UNIQUE KEY `parentid_name_unique` (`parentid`,`name`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=1602 DEFAULT CHARSET=utf8
*/

//调用示例2
require 'db.php';
$splitChar = ' ';  //空格
$file = 'sqldata2.txt';
$fields = array('id','make','model','year');
$table = 'cars';
$result = loadTxtDataIntoDatabase($splitChar,$file,$table,$conn,$fields);
if (array_shift($result)){
  echo 'Success!<br>';
}else {
  echo 'Failed!--Error:'.array_shift($result).'<br>';
}
/* sqldata2.txt
11 Aston DB19 2009
12 Aston DB29 2009
13 Aston DB39 2009

-- cars
CREATE TABLE `cars` (
 `id` int(11) NOT NULL AUTO_INCREMENT,
 `make` varchar(16) NOT NULL,
 `model` varchar(16) DEFAULT NULL,
 `year` varchar(16) DEFAULT NULL,
 PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=14 DEFAULT CHARSET=utf8
*/

//调用示例3
require 'db.php';
$splitChar = '  ';  //Tab
$file = 'sqldata3.txt';
$fields = array('id','make','model','year');
$table = 'cars';
$insertType = 'REPLACE';
$result = loadTxtDataIntoDatabase($splitChar,$file,$table,$conn,$fields,$insertType);
if (array_shift($result)){
  echo 'Success!<br>';
}else {
  echo 'Failed!--Error:'.array_shift($result).'<br>';
}
/* sqldata3.txt
11  Aston  DB19  2009
12  Aston  DB29  2009
13  Aston  DB39  2009 
*/

//调用示例3
require 'db.php';
$splitChar = '  ';  //Tab
$file = 'sqldata3.txt';
$fields = array('id','value');
$table = 'notExist';  //不存在表
$result = loadTxtDataIntoDatabase($splitChar,$file,$table,$conn,$fields);
if (array_shift($result)){
  echo 'Success!<br>';
}else {
  echo 'Failed!--Error:'.array_shift($result).'<br>';
}

//附:db.php
/*  //注释这一行可全部释放
?>


//*/
复制代码
-- 数据表结构:

-- 100000_insert,1000000_insert

CREATE TABLE `100000_insert` (
 `id` int(11) NOT NULL AUTO_INCREMENT,
 `parentid` int(11) NOT NULL,
 `name` varchar(255) DEFAULT NULL,
 PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8

 100000 (10万)行插入:Insert 100000_line_data use 2.5534288883209 seconds

 1000000(100万)行插入:Insert 1000000_line_data use 19.677318811417 seconds

//可能报错:MySQL server has gone away

//解决:修改my.ini/my.cnf   max_allowed_packet=20M

以上就介绍了php读取txt文件并将数据插入到数据库,包括了方面的内容,希望对PHP教程有兴趣的朋友有所帮助。

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