Home  >  Article  >  php教程  >  php读取txt文件并将数据插入到数据库,

php读取txt文件并将数据插入到数据库,

WBOY
WBOYOriginal
2016-06-13 08:45:48724browse

php读取txt文件并将数据插入到数据库,

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");
$contents= explode(",",$content);//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

<&#63;php
/**
 * $splitChar 字段分隔符
 * $file 数据文件文件名
 * $table 数据库表名
 * $conn 数据库连接
 * $fields 数据对应的列名
 * $insertType 插入操作类型,包括INSERT,REPLACE
 */
function loadTxtDataIntoDatabase($splitChar,$file,$table,$conn,$fields=array(),$insertType='INSERT'){
  if(empty($fields)) $head = "{$insertType} INTO `{$table}` VALUES('";
  else $head = "{$insertType} INTO `{$table}`(`".implode('`,`',$fields)."`) VALUES('";  //数据头
  $end = "')";
  $sqldata = trim(file_get_contents($file));
  if(preg_replace('/\s*/i','',$splitChar) == '') {
    $splitChar = '/(\w+)(\s+)/i';
    $replace = "$1','";
    $specialFunc = 'preg_replace';
  }else {
    $splitChar = $splitChar;
    $replace = "','";
    $specialFunc = 'str_replace';
  }
  //处理数据体,二者顺序不可换,否则空格或Tab分隔符时出错
  $sqldata = preg_replace('/(\s*)(\n+)(\s*)/i','\'),(\'',$sqldata);  //替换换行
  $sqldata = $specialFunc($splitChar,$replace,$sqldata);        //替换分隔符
  $query = $head.$sqldata.$end;  //数据拼接
  if(mysql_query($query,$conn)) return array(true);
  else {
    return array(false,mysql_error($conn),mysql_errno($conn));
  }
}

//调用示例1
require 'db.php';
$splitChar = '|';  //竖线
$file = 'sqldata1.txt';
$fields = array('id','parentid','name');
$table = 'cengji';
$result = loadTxtDataIntoDatabase($splitChar,$file,$table,$conn,$fields);
if (array_shift($result)){
  echo 'Success!<br/>';
}else {
  echo 'Failed!--Error:'.array_shift($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
&#63;>
<&#63;php
static $connect = null;
static $table = 'jilian';
if(!isset($connect)) {
  $connect = mysql_connect("localhost","root","");
  if(!$connect) {
    $connect = mysql_connect("localhost","Zjmainstay","");
  }
  if(!$connect) {
    die('Can not connect to database.Fatal error handle by /test/db.php');
  }
  mysql_select_db("test",$connect);
  mysql_query("SET NAMES utf8",$connect);
  $conn = &$connect;
  $db = &$connect;
}
&#63;>

//*/
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

您可能感兴趣的文章:

  • php读取txt文件组成SQL并插入数据库的代码(原创自Zjmainstay)
  • 基于PHP读取TXT文件向数据库导入海量数据的方法
Statement:
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