<?php
rename("/path/file.tx", "/path/newfile.txt");
?>

<?php
function copyFile($source, $destination){
    if(!@copy($source,$destination)){
        $errors = error_get_last();
        $error  = $errors['type']."<br/>".$errors['message'];
        return $error;
    }else{
        return true;
    }
}
?>

<?php
copyFile("http://www.sitoremoto.it/file.txt", "./file.txt");
?>

<?php
function RFC822ToDate($gmtDate, $format="it", $showTime=true){
        list($dayT, $dayN, $monthT, $year, $time) = explode(" ",$gmtDate);
        $dayT = trim($dayT,",");
        $months = array("01"=>"Jan","02"=>"Feb","03"=>"Mar","04"=>"Apr","05"=>"May","06"=>"Jun","07"=>"Jul","08"=>"Aug","09"=>"Sep","10"=>"Oct","11"=>"Nov","12"=>"Dec");
        $monthT = array_search($monthT, $months);
        if(!$showTime) $time = "";
        switch($format){
            case "it":
                $date = $dayN."-".$monthT."-".$year." ".$time ;
                break;
            case "us":
                $date = $year."-".$monthT."-".$dayN." ".$time ;
                break;
            default:
                $date = $year."-".$monthT."-".$dayN." ".$time ;
                break;                
        }
        return $date;
    }
echo RFC822ToDate("Tue, 08 Nov 2014 06:47:10 GMT"); 
//stampa 08-11-2014 06:47:10   
?>

<?php
/**
 * rss
 * 
 * @package RssNow
 * @author Fabio Ricali
 * @copyright 2010
 * @version 1.0.0
 * @access public
 */
class RssNow{
 
    /**
     * rss::getRss()
     * 
     * @param string $urlXml
     * @param int $index
     * @param int $offSet
     * @return array
     */
    public function getRss($urlXml, $index=null, $offSet=null){
        $doc = new DOMDocument();
        $doc->load($urlXml);
 
        $items = $doc->getElementsByTagName("item");
        $i = 0;
 
        foreach( $items as $item ){
            $i++;
            $titles = $item->getElementsByTagName("title");
            $title = $titles->item(0)->nodeValue;
 
            $pubdates = $item->getElementsByTagName("pubDate");
            $pubdate = $pubdates->item(0)->nodeValue;
 
            $descriptions = $item->getElementsByTagName("description");
            $description = $descriptions->item(0)->nodeValue;
 
            $categories = $item->getElementsByTagName("category");
            $category = $categories->item(0)->nodeValue;
 
            $authors = $item->getElementsByTagName("author");
            $author = $authors->item(0)->nodeValue;
 
            $comments = $item->getElementsByTagName("comments");
            $comment = $comments->item(0)->nodeValue;
 
            $links = $item->getElementsByTagName("link");
            $link = $comments->item(0)->nodeValue;
 
            $enclosures = $item->getElementsByTagName("enclosure");
            foreach($enclosures as $enclosure_){
               $enclosure = $enclosure_->getAttribute("url");
            }
 
            $eval='
                $array[$i][\'title\'] = $title ;
                $array[$i][\'description\'] = $description ;
                $array[$i][\'pubDate\'] = $this->gmtToDate($pubdate) ;
                $array[$i][\'author\'] = $author ;
                $array[$i][\'comments\'] = $comment ;
                $array[$i][\'category\'] = $category ;
                $array[$i][\'enclosure\'] = $enclosure ;
                $array[$i][\'link\'] = $link ;
            ';
 
            if($index==null && $offSet==null){    
                eval($eval);
            }else if($index!=null && $offSet!=null){
                $range = range($index,$offSet);
                if(in_array($i,$range)){
                    eval($eval);
                }
            }else{
                if($i==$index){
                    $eval = str_replace('[$i]','',$eval);
                    eval($eval);
                    return $array;
                }
            }        
        }
        //$array[0]['length'] = $items->length;  
        return $array;
    }
 
    private function gmtToDate($gmtDate, $format="it", $showTime=true){
        list($dayT, $dayN, $monthT, $year, $time) = explode(" ",$gmtDate);
        $dayT = trim($dayT,",");
        $months = array("01"=>"Jan","02"=>"Feb","03"=>"Mar","04"=>"Apr","05"=>"May","06"=>"Jun","07"=>"Jul","08"=>"Aug","09"=>"Sep","10"=>"Oct","11"=>"Nov","12"=>"Dec");
        $monthT = array_search($monthT, $months);
        if(!$showTime) $time = "";
        switch($format){
            case "it":
                $date = $dayN."-".$monthT."-".$year." ".$time ;
                break;
            case "us":
                $date = $year."-".$monthT."-".$dayN." ".$time ;
                break;
            default:
                $date = $year."-".$monthT."-".$dayN." ".$time ;
                break;                
        }
        return $date;
    }     
}
?>

<?php
$rss = new RssNow;
$arr = $rss->getRss("http://www.repubblica.it/rss/cronaca/rss2.0.xml");
foreach($arr as $item){
    echo " Titolo: ".$item['title']."<br>";
    echo " Descrizione: ".$item['description']."<br>";
    echo " Data pubbl.: ".$item['pubDate']."<br>";
    echo " Autore: ".$item['author']."<br>";
    echo " Categoria: ".$item['category']."<br>";
}
 
?>

<?php
function getCurrentUrl(){
    return "http://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
}
 
echo getCurrentUrl();
?>

echo strip_tags("Testo con <strong>HTML</strong>"); //stampa "Testo con HTML"

<?php
function getOs(){
	$OSList = array(
	// Match user agent string with operating systems
	'Windows 3.11' => 'Win16',
	'Windows 95' => '(Windows 95)|(Win95)|(Windows_95)',
	'Windows 98' => '(Windows 98)|(Win98)',
	'Windows 2000' => '(Windows NT 5.0)|(Windows 2000)',
	'Windows XP' => '(Windows NT 5.1)|(Windows XP)',
	'Windows Server 2003' => '(Windows NT 5.2)',
	'Windows Vista' => '(Windows NT 6.0)',
	'Windows 7' => '(Windows NT 7.0)',
	'Windows NT 4.0' => '(Windows NT 4.0)|(WinNT4.0)|(WinNT)|(Windows NT)',
	'Windows ME' => 'Windows ME',
	'Open BSD' => 'OpenBSD',
	'Sun OS' => 'SunOS',
	'Linux' => '(Linux)|(X11)',
	'Mac OS' => '(Mac_PowerPC)|(Macintosh)',
	'QNX' => 'QNX',
	'BeOS' => 'BeOS',
	'OS/2' => 'OS/2',
	'Search Bot'=>'(nuhk)|(Googlebot)|(Yammybot)|(Openbot)|(Slurp)|(MSNBot)|(Ask Jeeves/Teoma)|(ia_archiver)'
	);
 
	// Loop through the array of user agents and matching operating systems
	foreach($OSList as $CurrOS=>$Match){
		// Find a match
		if (preg_match("/$Match/i", $_SERVER['HTTP_USER_AGENT'])){
			// We found the correct match
			break;
		}
	}
	return $CurrOS;
}
?>

function easy_password($n=3){
	$arr_consonant = array("b","c","d","f","g","l","m","n","v","z","k","w","x");
	$arr_vowel = array("a","e","i","o","u","y");
	$arr_number = range(0,9);
	shuffle($arr_consonant);
	shuffle($arr_vowel);
	shuffle($arr_number);
	$word = "";
	$number = "";
	for ($i=0; $i<$n; $i++){
		$word .= $arr_consonant[$i].$arr_vowel[$i];
		$number .= $arr_number[$i];
	}
	return $word."_".$number;
}
echo easy_password()

<?php
function getFileExtension($file){
	$filename = basename($file);
	return $file_extension = strtolower(substr(strrchr($filename,"."),1));
}
?>