How to extract tables in mysql database using php script

Here is the tutorial video: https://www.youtube.com/watch?v=kRO2HyHZbWQ

This is PHP script to extract tables in mysql database : 

<?php
/**
*Modified by: www.ddroid509ht.com

*/

//MySQL server and database
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = '';
$dbname = 'dblogin';
$tables = '*';
//Call the core function
backup_tables($dbhost, $dbuser, $dbpass, $dbname, $tables);
//Core function
function backup_tables($host, $user, $pass, $dbname, $tables = '*') {
    $link = mysqli_connect($host,$user,$pass, $dbname);
    // Check connection
    if (mysqli_connect_errno())
    {
        echo "Failed to connect to MySQL: " . mysqli_connect_error();
        exit;
    }
    mysqli_query($link, "SET NAMES 'utf8'");
    //get all of the tables
    if($tables == '*')
    {
        $tables = array();
        $result = mysqli_query($link, 'SHOW TABLES');
        while($row = mysqli_fetch_row($result))
        {
            $tables[] = $row[0];
        }
    }
    else
    {
        $tables = is_array($tables) ? $tables : explode(',',$tables);
    }
    $return = '';
    //cycle through
    foreach($tables as $table)
    {
        $result = mysqli_query($link, 'SELECT * FROM '.$table);
        $num_fields = mysqli_num_fields($result);
        $num_rows = mysqli_num_rows($result);
        $return.= 'DROP TABLE IF EXISTS '.$table.';';
        $row2 = mysqli_fetch_row(mysqli_query($link, 'SHOW CREATE TABLE '.$table));
        $return.= "\n\n".$row2[1].";\n\n";
        $counter = 1;
        //Over tables
        for ($i = 0; $i < $num_fields; $i++)
        {   //Over rows
            while($row = mysqli_fetch_row($result))
            { 
                if($counter == 1){
                    $return.= 'INSERT INTO '.$table.' VALUES(';
                } else{
                    $return.= '(';
                }
                //Over fields
                for($j=0; $j<$num_fields; $j++)
                {
                    $row[$j] = addslashes($row[$j]);
                    $row[$j] = str_replace("\n","\\n",$row[$j]);
                    if (isset($row[$j])) { $return.= '"'.$row[$j].'"' ; } else { $return.= '""'; }
                    if ($j<($num_fields-1)) { $return.= ','; }
                }
                if($num_rows == $counter){
                    $return.= ");\n";
                } else{
                    $return.= "),\n";
                }
                ++$counter;
            }
        }
        $return.="\n\n\n";
    }
    //save file , db-backup
//$fileName = 'caisseDB-'.time().'-'.(md5(implode(',',$tables))).'.sql';
    $fileName = 'dblogin'.'.sql';
    $handle = fopen($fileName,'w+');
    fwrite($handle,$return);
 
   if(fclose($handle)){
        echo "Done, the file name is: ".$fileName;
        exit;
    }
}

?>

Save this line of code in a file named: ExtractFromDb.php 

Now Run it in a browser  can be Chrome, Firefox, Safari or Internet Edge. 
This will produce a SQL file name caisseDB.sql content all tables in your tables. 


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