Ciao, non so se può esserti utile ma io per fare il backup dei db utilizzo questa procedura troata su qsto forum. Il file db.inc contiene i dati per la connessione al database mentre $name è il nome del file che viene creato

require("db.inc");


$now=date("Y-m-d_H:i:s");
$name =$database."_".$now.".sql";

$link = @mysql_connect($host, $db_user, $db_password) or die ("connessione fallita") ;


@mysql_select_db($database) or die ("selezione db non riuscita");

//ho selezionato il db

//codice per il backup

$_PVTVARS['sql_backup'] = "";

$query_sql = "SHOW TABLE STATUS;";

$query=mysql_query($query_sql);

$_PVTVARS['sql_backup'] .= "#################################\n";

$_PVTVARS['sql_backup'] .= "# Backup di $name #\n";

$_PVTVARS['sql_backup'] .= "#################################\n";

$_PVTVARS['sql_backup'] .= "#\n";

$_PVTVARS['sql_backup'] .= "# Backup del " . date ("d_m_Y") . "\n";

$_PVTVARS['sql_backup'] .= "#\n";

$_PVTVARS['sql_backup'] .= "\n";

$_PVTVARS['sql_backup'] .= "\n";

while ($result=mysql_fetch_row($query)) {

$result2=mysql_fetch_array(mysql_query("SHOW CREATE TABLE {$result[0]};"));

$_TABLE['name']=$result[0];

$_TABLE['query']=ereg_replace("[\n]*","",$result2[1]);

$_PVTVARS['sql_backup'] .= "#\n";

$_PVTVARS['sql_backup'] .= "# Drop table, if exists, {$_TABLE['name']} and recreate it\n";

//$_PVTVARS['sql_backup'] .= "#\n";

$_PVTVARS['sql_backup'] .= "DROP TABLE IF EXISTS {$_TABLE['name']};\n";

$_PVTVARS['sql_backup'] .= "{$_TABLE['query']};\n\n";

$_PVTVARS['sql_backup'] .= "#\n";

$_PVTVARS['sql_backup'] .= "# Insert statament for {$_TABLE['name']}\n";

$_PVTVARS['sql_backup'] .= "#\n";

$query_sql2="SELECT * FROM {$_TABLE['name']};";

$query2=mysql_query($query_sql2);

while ($result2=mysql_fetch_row($query2)) {

$_PVTVARS['sql_backup'] .= "INSERT INTO {$_TABLE['name']} VALUES (";

$_INSERT = array();

while (list($key,$value)=each($result2)) {

$value=str_replace("#","",$value);

$value=str_replace("--","--",$value);

//$value=str_replace("\"","\"",$value);
$value=str_replace("'","\'",$value);

$_INSERT[] = "'{$value}'";

}

$_PVTVARS['sql_backup'] .= implode(",",$_INSERT);

$_PVTVARS['sql_backup'] .= ");\n";

}

}



if(ereg("MSIE ([0-9].[0-9]{1,2})", $_SERVER["HTTP_USER_AGENT"])) {



header("Content-Type: application/octetstream");

header("Content-Disposition: inline; filename=$name");

header("Expires: 0");

header("Cache-Control: must-revalidate, post-check=0, pre-check=0");

header("Pragma: public");



} else {



header("Content-Type: application/octet-stream");

header("Content-Disposition: attachment; filename=$name");

header("Expires: 0");

header("Pragma: no-cache");



}


//echo implode("",$_PVTVARS['sql_backup']);
echo "",$_PVTVARS['sql_backup'];