<?php

$name = "cosmic gate";

$array = array(
           '/./'               =>'',
           '/( feat)(.*)/'   =>'',
           '/( Ft)(.*)/'     =>'',
           '/( ft)(.*)/'     =>'',
           '/( Feat)(.*)/'   =>'',
           '/( pres)(.*)/'   =>'',
           '/( Pres)(.*)/'   =>'',
           '/( vs)(.*)/'     =>'',
           '/( Vs)(.*)/'     =>''

        );

$artist = preg_replace(array_keys($array),array_values($array),$name);
$url = 'http://ws.audioscrobbler.com/2.0/?method=artist.getInfo&api_key=57ee3318536b23ee81d6b27e36997cde&artist='.$artist;
$xml = @simplexml_load_file($url);
$poster_def = "<img src="images/logo.png"/>";

if ($xml === false) {
  echo $poster_def;

} else {

  if(!empty($xml->artist->image[3])) {

       $poster_last  = $xml->artist[0]->image[3];
       $poster_name  = uniqid() . ".png";
       $poster_dir   = "images";
       $poster_pach  = $poster_dir . "/" . $poster_name;
       echo $xml->artist[0]->image[3];

       file_put_contents($poster_pach, file_get_contents($poster_last));

  } else {

    echo $poster_def;
}
}



?>

$na_bazu = $poster_def;

if (isset($xml) && !empty($xml->artist->image[3])) {

       $poster_last  = $xml->artist[0]->image[3];
       $poster_name  = uniqid() . ".png";
       $poster_dir   = "images";
       $poster_pach  = $poster_dir . "/" . $poster_name;
       $na_bazu = $xml->artist[0]->image[3];

       file_put_contents($poster_pach, file_get_contents($poster_last));

}

// Сохранить $$na_bazu на базу