Export and Import Mysql Database using shell script in php

Export and Import Mysql  Database using  shell script in php  

<?php

ini_set('display_errors', 1);

ini_set('display_startup_errors', 1);

ini_set('max_execution_time', '-1');

error_reporting(E_ALL);

$dbhost = 'localhost';

$dbuser = 'root';

$dbpass = 'root';

$db = 'alldatabackup';

$dir = 'dump.sql';

$conn = mysqli_connect($dbhost, $dbuser, $dbpass);

// Check connection

if (!$conn) {

die("Connection failed: " . mysqli_connect_error());

}

$sql = "CREATE DATABASE alldatabackup";

if ($conn->query($sql) === TRUE) {

echo "Database created successfully";

} else {

echo "Error creating database: " . $conn->error;

}

$mySQLDir='/Applications/MAMP/Library/bin/mysqldump';

$cmd = $mySQLDir .' -h '.$dbhost.' --user='.$dbuser.' --password='.$dbpass.' alldata > dump.sql';

exec($cmd);

echo "Import Done";

$mySQLDirec='/Applications/MAMP/Library/bin/mysql';

$cmd = $mySQLDirec.' -h '.$dbhost.' --user='.$dbuser.' --password='.$dbpass.' alldatabackup < "'.$dir.'"';

exec($cmd);

echo "Export Done";

Access MAMP's MySQL from Terminal and Import SQL database

connect like this from command line import database: 

 /Applications/MAMP/Library/bin/mysql -uUsername -pPassword 

 After provide source 

use <database>;

 source /Users/200khkjh031/Downloads/a_1712210588.sql; 

Obviously replace Username and Password. , there is no space between -u and the Username or -p and the Password.