Php reads the txt file to form an SQL statement and inserts the database code, so that you can easily
Php reads the txt file to form an SQL statement and inserts the database code, so that you can easily
/**
* $ SplitChar field delimiter
* $ File data file name
* $ Table database table name
* $ Conn database connection
* $ Name of the column corresponding to fields data
* $ InsertType INSERT operation type, including INSERT and REPLACE
*/
The Code is as follows:
/**
* $ SplitChar field delimiter
* $ File data file name
* $ Table database table name
* $ Conn database connection
* $ Name of the column corresponding to fields data
* $ InsertType INSERT operation type, including INSERT and REPLACE
*/
Function loadtxtdata1_database ($ splitChar, $ file, $ table, $ conn, $ fields = array (), $ insertType = 'insert '){
If (empty ($ fields) $ head = "{$ insertType} INTO '{$ table} 'values ('";
Else $ head = "{$ insertType} INTO '{$ table }'('". implode ('','', $ fields ). "') VALUES ('"; // data Header
$ 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 ';
}
// Process the data body. The order of the two parts cannot be changed. Otherwise, an error occurs when the space or Tab separator is used.
$ Sqldata = preg_replace ('/(\ s *) (\ n +) (\ s *)/I', '\'), (\ '', $ sqldata ); // replace line feed
$ Sqldata = $ specialFunc ($ splitChar, $ replace, $ sqldata); // replace the delimiter
$ Query = $ head. $ sqldata. $ end; // data stitching
If (mysql_query ($ query, $ conn) return array (true );
Else {
Return array (false, mysql_error ($ conn), mysql_errno ($ conn ));
}
}
// Call Example 1
Require 'db. php ';
$ SplitChar = '|'; // vertical bar
$ File = 'sqldata1.txt ';
$ Fields = array ('id', 'parentid', 'name ');
$ Table = 'cengji ';
$ Result = loadtxtdata1_database ($ splitChar, $ file, $ table, $ conn, $ fields );
If (array_shift ($ result )){
Echo 'success!
';
} Else {
Echo 'failed! -- Error: '. array_shift ($ result ).'
';
}
/* Sqlda ta1.txt
| 0 |
| 1 | B
| 1 | C
| 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
*/
// Call Example 2
Require 'db. php ';
$ SplitChar = ''; // Space
$ File = 'sqldata2.txt ';
$ Fields = array ('id', 'make', 'model', 'Year ');
$ Table = 'cars ';
$ Result = loadtxtdata1_database ($ splitChar, $ file, $ table, $ conn, $ fields );
If (array_shift ($ result )){
Echo 'success!
';
} Else {
Echo 'failed! -- Error: '. array_shift ($ result ).'
';
}
/* Sqldata2.txt
Aston DB19 2009
Aston DB29 2009
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
*/
// Call Example 3
Require 'db. php ';
$ SplitChar = ''; // Tab
$ File = 'sqldata3.txt ';
$ Fields = array ('id', 'make', 'model', 'Year ');
$ Table = 'cars ';
$ InsertType = 'replace ';
$ Result = loadtxtdata1_database ($ splitChar, $ file, $ table, $ conn, $ fields, $ insertType );
If (array_shift ($ result )){
Echo 'success!
';
} Else {
Echo 'failed! -- Error: '. array_shift ($ result ).'
';
}
/* Sqldata3.txt
Aston DB19 2009
Aston DB29 2009
Aston DB39 2009
*/
// Call Example 3
Require 'db. php ';
$ SplitChar = ''; // Tab
$ File = 'sqldata3.txt ';
$ Fields = array ('id', 'value ');
$ Table = 'notexist'; // The table does not exist.
$ Result = loadtxtdata1_database ($ splitChar, $ file, $ table, $ conn, $ fields );
If (array_shift ($ result )){
Echo 'success!
';
} Else {
Echo 'failed! -- Error: '. array_shift ($ result ).'
';
}
// Appendix: db. php
/* // Note that all rows can be released.
?>
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;
}
?>
//*/
Data Table Structure
The Code is as follows:
-- Data table structure:
-- 100000_insert, 1_00_insert
Create table '2017 _ 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
Insert 100000 (0.1 million) rows: Insert 100000_line_data use 2.5534288883209 seconds
Insert 1000000 (1 million) rows: Insert into 00_line_data use 19.677318811417 seconds
// Possible error: MySQL server has gone away
// Solution: modify my. ini/my. cnf max_allowed_packet = 20 M
Author: Zjmainstay
