Export MySQL Database Using PHP Code

Using bellow snippet we have to download and store on server MySQL database easily. Just change database name and it’s credentials.


EXPORT_TABLES("localhost","username","password","database" ); //or add 5th parameter(array) of specific tables: array("mytable1","mytable2","mytable3")
function EXPORT_TABLES($host,$user,$pass,$name, $tables=false, $backup_name=false ){

$mysqli = new mysqli($host,$user,$pass,$name); $mysqli->select_db($name); $mysqli->query("SET NAMES 'utf8'");
$queryTables = $mysqli->query('SHOW TABLES'); while($row = $queryTables->fetch_row()) { $target_tables[] = $row[0]; } if($tables !== false) { $target_tables = array_intersect( $target_tables, $tables); }
foreach($target_tables as $table){

$result = $mysqli->query('SELECT * FROM '.$table);
$fields_amount=$result->field_count; $rows_num=$mysqli->affected_rows;

$res = $mysqli->query('SHOW CREATE TABLE '.$table);

if(!$res) {
//echo $link->error;
} else {
$TableMLine=$res->fetch_row();
}
$content = (!isset($content) ? '' : $content) . "\n\n".$TableMLine[1].";\n\n";
for ($i = 0, $st_counter = 0; $i < $fields_amount; $i++, $st_counter=0) {
while($row = $result->fetch_row()) { //when started (and every after 100 command cycle):
if ($st_counter%100 == 0 || $st_counter == 0 ) {$content .= "\nINSERT INTO ".$table." VALUES";}
$content .= "\n(";
for($j=0; $j<$fields_amount; $j++) { $row[$j] = str_replace("\n","\\n", addslashes($row[$j]) ); if (isset($row[$j])){$content .= '"'.$row[$j].'"' ; }else {$content .= '""';} if ($j<($fields_amount-1)){$content.= ',';} }
$content .=")";
//every after 100 command cycle [or at last line] ....p.s. but should be inserted 1 cycle eariler
if ( (($st_counter+1)%100==0 && $st_counter!=0) || $st_counter+1==$rows_num) {$content .= ";";} else {$content .= ",";} $st_counter=$st_counter+1;
}
} $content .="\n\n\n";
}



$backup_name = $backup_name ? $backup_name : $name."___(".date('H-i-s')."_".date('d-m-Y').")__rand".rand(1,11111111).".sql";

/***********/
/* if you have to store on your server
/***********/

/*$rootPath = realpath('../auto-backup');
$rootPath = $rootPath.'/'.$backup_name;

$fp = fopen($rootPath,"wb");
fwrite($fp,$content);
fclose($fp);
/**************/


/***********/
/* if you have to download
/***********/
header('Content-Type: application/octet-stream'); header("Content-Transfer-Encoding: Binary"); header("Content-disposition: attachment; filename=\"".$backup_name."\""); echo $content; exit;
}

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s