PHP script to restore a database into another empty database - php

Question

This question might seem a duplicate, However i tried all the examples to restore my database but none seems to work for me.
I am trying to run a script that will restore my backup sql file to new database. I tried these lines to restore my database, but none seem to work.
$mysql_host = 'localhost';
$mysql_username = 'my_username';
$mysql_password = 'somepassword';
$db_name = 'test_db';
$source = 'C:/wamp/www/my_folder/test_db.sql';
$conn = mysql_connect( $mysql_host, $mysql_username, $mysql_password ) or die('Error connecting to MySQL server: ' . mysql_error());
mysql_query("CREATE DATABASE $db_name", $conn ) or die('Error connecting to MySQL server: ' . mysql_error());
restore_my_database( $mysql_host, $mysql_username, $mysql_password, $db_name, $source );
function restore_my_database( $mysql_host, $mysql_username, $mysql_password, $db_name, $source ) {
exec("mysql --opt -h $mysql_host -u $mysql_username -p $mysql_password $db_name < $source");
}
I also tried in function restore_my_database following lines
$command = "mysqldump --opt -h $mysql_host -u $mysql_username -p $mysql_password $db_name > $source";
system($command);
Upto database create, the code is working fine, but restore is not working.
Can any one help me with the php restore code to restore my database. Thanks in advance

Answer 1

you can achieve it by below code, first get content from .sql file and then execute the query
$source = 'C:/wamp/www/my_folder/test_db.sql';
$conn = mysql_connect( $mysql_host, $mysql_username, $mysql_password ) or die('Error connecting to MySQL server: ' . mysql_error());
mysql_query("CREATE DATABASE $db_name", $conn ) or die('Error connecting to MySQL server: ' . mysql_error());
mysql_select_db($db_name);
$qry = file_get_contents($source);
mysql_query($qry, $conn);
and also increase max execution time, memory limit in php.ini file

Answer 2

-- you have to create a schema:
mysql
mysql> create database [your schema name];
mysql> grant all privileges on [your schema name].* to [your username]#localhost identified by '[your password]';
-- create sql dump on your computer:
mysqldump [your schema name] > [your schema name].sql
-- and import it to the new DB:
mysql [your schema name] < [your schema name].sql;

Answer 3

Since you are tagging this with "phpmyadmin", try with phpMyAdmin to create your database then import your .sql file.

Answer 4

//recupero il nome del file .sql
$file = "C:/wamp/www/my_folder/test_db.sql";
//definisco il nome del database
$db = 'name_db';
//effettuo la connessione al databse
$conn = mysqli_connect($mysql_host, $mysql_username, $mysql_password) or die('Errore di connessione al server MySQL: ' . mysqli_error());
//seleziono il database
mysqli_select_db($conn,$db);
//leggo il contenuto del file .sql
$qry = file_get_contents($file);
//divido tutte le query presenti nel file .sql
$query = explode(";",$qry);
//conto quante query esistono
$arrlenght = count($query);
//ciclo tutte le query del file
for($i=0;$i<$arrlenght;$i++){
mysqli_query($conn, $query[$i]);
}