46 sehr nützliche PHP-Code-Snippets (3)

function Delete($path)
{
    if (is_dir($path) === true)
    {
        $files = array_diff(scandir($path), array('.', '..'));
        foreach ($files as $file)
        {
            Delete(realpath($path) . '/' . $file);
        }
        return rmdir($path);
    }
    else if (is_file($path) === true)
    {
        return unlink($path);
    }
    return false;
}

function highlighter_text($text, $words)
{
    $split_words = explode( " " , $words );
    foreach($split_words as $word)
    {
        $color = "#4285F4";
        $text = preg_replace("|($word)|Ui" ,
            "<b>$1</b>" , $text );
    }
    return $text;
}

function imagefromURL($image,$rename)
{
$ch = curl_init($image);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);
$rawdata=curl_exec ($ch);
curl_close ($ch);
$fp = fopen("$rename",'w');
fwrite($fp, $rawdata); 
fclose($fp);
}

function isvalidURL($url)
{
$check = 0;
if (filter_var($url, FILTER_VALIDATE_URL) !== false) {
  $check = 1;
}
return $check;
}

function qr_code($data, $type = "TXT", $size ='150', $ec='L', $margin='0')  
{
     $types = array("URL" =--> "http://", "TEL" => "TEL:", "TXT"=>"", "EMAIL" => "MAILTO:");
    if(!in_array($type,array("URL", "TEL", "TXT", "EMAIL")))
    {
        $type = "TXT";
    }
    if (!preg_match('/^'.$types[$type].'/', $data))
    {
        $data = str_replace("\\", "", $types[$type]).$data;
    }
    $ch = curl_init();
    $data = urlencode($data);
    curl_setopt($ch, CURLOPT_URL, 'http://chart.apis.google.com/chart');
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, 'chs='.$size.'x'.$size.'&cht=qr&chld='.$ec.'|'.$margin.'&chl='.$data);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HEADER, false);
    curl_setopt($ch, CURLOPT_TIMEOUT, 30);
    $response = curl_exec($ch);
    curl_close($ch);
    return $response;
}

function getDistanceBetweenPointsNew($latitude1, $longitude1, $latitude2, $longitude2) {
    $theta = $longitude1 - $longitude2;
    $miles = (sin(deg2rad($latitude1)) * sin(deg2rad($latitude2))) + (cos(deg2rad($latitude1)) * cos(deg2rad($latitude2)) * cos(deg2rad($theta)));
    $miles = acos($miles);
    $miles = rad2deg($miles);
    $miles = $miles * 60 * 1.1515;
    $feet = $miles * 5280;
    $yards = $feet / 3;
    $kilometers = $miles * 1.609344;
    $meters = $kilometers * 1000;
    return compact('miles','feet','yards','kilometers','meters'); 
}

function getTweets($hash_tag) {
    $url = 'http://search.twitter.com/search.atom?q='.urlencode($hash_tag) ;
    echo "<p>Connecting to <strong>$url</strong> ...</p>";
    $ch = curl_init($url);
    curl_setopt ($ch, CURLOPT_RETURNTRANSFER, TRUE);
    $xml = curl_exec ($ch);
    curl_close ($ch);
    //If you want to see the response from Twitter, uncomment this next part out:
    //echo "<p>Response:</p>";
    //echo "<pre class="brush:php;toolbar:false">".htmlspecialchars($xml)."

Tweet from ".$author.": ".$text." Posted ".date('n/j/y g:i a',$time)."

function ordinal($cdnl){ 
    $test_c = abs($cdnl) % 10; 
    $ext = ((abs($cdnl) %100 < 21 && abs($cdnl) %100 > 4) ? &#39;th&#39;
            : (($test_c < 4) ? ($test_c < 3) ? ($test_c < 2) ? ($test_c < 1) 
            ? &#39;th&#39; : &#39;st&#39; : &#39;nd&#39; : &#39;rd&#39; : &#39;th&#39;)); 
    return $cdnl.$ext; 
}

<!--?php
// local file that should be send to the client
$local_file = &#39;test-file.zip&#39;;
// filename that the user gets as default
$download_file = &#39;your-download-name.zip&#39;;
  
// set the download rate limit (=--> 20,5 kb/s)
$download_rate = 20.5; 
if(file_exists($local_file) && is_file($local_file)) {
    // send headers
    header(&#39;Cache-control: private&#39;);
    header(&#39;Content-Type: application/octet-stream&#39;); 
    header(&#39;Content-Length: &#39;.filesize($local_file));
    header(&#39;Content-Disposition: filename=&#39;.$download_file);
  
    // flush content
    flush();    
    // open file stream
    $file = fopen($local_file, "r");    
    while(!feof($file)) {
  
        // send the current file part to the browser
        print fread($file, round($download_rate * 1024));    
  
        // flush the content to the browser
        flush();
  
        // sleep one second
        sleep(1);    
    }    
  
    // close file stream
    fclose($file);}
else {
    die(&#39;Error: The file &#39;.$local_file.&#39; does not exist!&#39;);
}
?>

function remote_filesize($url, $user = "", $pw = "")
{
    ob_start();
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_HEADER, 1);
    curl_setopt($ch, CURLOPT_NOBODY, 1);
    if(!empty($user) && !empty($pw))
    {
        $headers = array(&#39;Authorization: Basic &#39; .  <a href="http://www.php-z.com/" target="_blank" class="relatedlink">Base</a>64_encode("$user:$pw"));
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    }
    $ok = curl_exec($ch);
    curl_close($ch);
    $head = ob_get_contents();
    ob_end_clean();
    $regex = &#39;/Content-Length:\s([0-9].+?)\s/&#39;;
    $count = preg_match($regex, $head, $matches);
    return isset($matches[1]) ? $matches[1] : "unknown";
}

function get_tiny_url($url)  
{  
    $ch = curl_init();  
    $timeout = 5;  
    curl_setopt($ch,CURLOPT_URL,'http://tinyurl.com/api-create.php?url='.$url);  
    curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);  
    curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);  
    $data = curl_exec($ch);  
    curl_close($ch);  
    return $data;  
}

function str_between($string, $start, $end)
{ 
$string = " ".$string; $ini = strpos($string,$start); if ($ini == 0) return ""; $ini += strlen($start); $len = strpos($string,$end,$ini) - $ini; return substr($string,$ini,$len); }
function get_youtube_download_link(){
    $youtube_link = $_GET['youtube'];
    $youtube_page = file_get_contents($youtube_link);
    $v_id = str_between($youtube_page, "&video_id=", "&");
    $t_id = str_between($youtube_page, "&t=", "&");
    $flv_link = "http://www.youtube.com/get_video?video_id=$v_id&t=$t_id";
    $hq_flv_link = "http://www.youtube.com/get_video?video_id=$v_id&t=$t_id&fmt=6";
    $mp4_link = "http://www.youtube.com/get_video?video_id=$v_id&t=$t_id&fmt=18";
    $threegp_link = "http://www.youtube.com/get_video?video_id=$v_id&t=$t_id&fmt=17";
    echo "\t\tDownload (right-click > save as):\n\t\t";
    echo "<a href="\"$flv_link\"">FLV</a>\n\t\t";
    echo "<a href="\"$hq_flv_link\"">HQ FLV (if available)</a>\n\t\t";
    echo "<a href="\"$mp4_link\"">MP4</a>\n\t\t";
    echo "<a href="\"$threegp_link\"">3GP</a><br><br>\n";
}

function nicetime($date)
{
    if(empty($date)) {
        return "No date provided";
    }
     
    $periods         = array("second", "minute", "hour", "day", "week", "month", "year", "decade");
    $lengths         = array("60","60","24","7","4.35","12","10");
     
    $now             = time();
    $unix_date         = strtotime($date);
     
       // check validity of date
    if(empty($unix_date)) {    
        return "Bad date";
    }
    // is it future date or past date
    if($now > $unix_date) {    
        $difference     = $now - $unix_date;
        $tense         = "ago";
         
    } else {
        $difference     = $unix_date - $now;
        $tense         = "from now";
    }
     
    for($j = 0; $difference >= $lengths[$j] && $j < count($lengths)-1; $j++) {
        $difference /= $lengths[$j];
    }
     
    $difference = round($difference);
     
    if($difference != 1) {
        $periods[$j].= "s";
    }
     
    return "$difference $periods[$j] {$tense}";
}