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<?php for($d=1;$d<=100;$d++) { $link=”http://www.domain.com/demos/”.$d.”/source.zip”; if(http_url_exists($link)) {   echo”Processing: “.$link.”<br>”;      exec(“wget -O “.dirname(__FILE__).”/download/source-“.$d.”.zip “.$link.” 2>&1″,$pp);      echoimplode(“”,$pp);echo”<br><br>”; } } //$file_headers = @get_headers($file); //’HTTP/1.1 404 Not Found’   function url_exists($url){     if(!$fp=curl_init($url))returnfalse;     returntrue; } function http_url_exists($url){          $file_headers=@get_headers($url);          if($file_headers[0]==’HTTP/1.1 404 Not Found’)         returnfalse;          returntrue; } ?>