Teknotit Snipet Manager tarfst: Snippets: fonctions

Détecter les requette en AJAX

Fri, 17 Oct 2014 06:32:25 +0200

function is_ajax_request(){
   return !(empty($_SERVER['HTTP_X_REQUESTED_WITH']) || strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) != 'xmlhttprequest');
}

Utilisation image Gravatars

Fri, 17 Oct 2014 06:29:40 +0200

/******************
*@email - Email address to show gravatar for
*@size - size of gravatar
*@default - URL of default gravatar to use
*@rating - rating of Gravatar(G, PG, R, X)
*/
function show_gravatar($email, $size, $default, $rating)
{
	echo '';
}

Force download - Forcer le download d'un fichier

Fri, 17 Oct 2014 06:26:43 +0200

/********************
*@file - path to file
*/
function force_download($file)
{
    if ((isset($file))&&(file_exists($file))) {
       header("Content-length: ".filesize($file));
       header('Content-Type: application/octet-stream');
       header('Content-Disposition: attachment; filename="' . $file . '"');
       readfile("$file");
    } else {
       echo "No file selected";
    }
}

Minimal post slug

Fri, 17 Oct 2014 06:24:39 +0200

function create_slug($string){
	$slug=preg_replace('/[^A-Za-z0-9-]+/', '-', $string);
	return $slug;
}

Supression répertoire avec son contenu

Fri, 17 Oct 2014 06:23:21 +0200

/*****
*@dir - Directory to destroy
*@virtual[optional]- whether a virtual directory
*/
function destroyDir($dir, $virtual = false)
{
	$ds = DIRECTORY_SEPARATOR;
	$dir = $virtual ? realpath($dir) : $dir;
	$dir = substr($dir, -1) == $ds ? substr($dir, 0, -1) : $dir;
	if (is_dir($dir) && $handle = opendir($dir))
	{
		while ($file = readdir($handle))
		{
			if ($file == '.' || $file == '..')
			{
				continue;
			}
			elseif (is_dir($dir.$ds.$file))
			{
				destroyDir($dir.$ds.$file);
			}
			else
			{
				unlink($dir.$ds.$file);
			}
		}
		closedir($handle);
		rmdir($dir);
		return true;
	}
	else
	{
		return false;
	}
}

Tronquer un texte (extrait)

Fri, 17 Oct 2014 06:08:02 +0200

function truncate($string, $length = 44, $etc = '...', $break_words = false, $middle = false)
{
    if ($length == 0)
        return '';

    if (strlen($string) > $length) {
        $length -= min($length, strlen($etc));
        if (!$break_words && !$middle) {
            $string = preg_replace('/\s+?(\S+)?$/', '', substr($string, 0, $length + 1));
        }
        if (!$middle) {
            return substr($string, 0, $length) . $etc;
        } else {
            return substr($string, 0, $length / 2) . $etc . substr($string, - $length / 2);
        }
    } else {
        return $string;
    }
}

Alternative a file_get_content pour les restriction des hébergeurs...

Fri, 17 Oct 2014 06:03:35 +0200

function file_get_contents_curl($url) {
    $ch = curl_init();

    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_URL, $url);

    $data = curl_exec($ch);
    curl_close($ch);

    return $data;
}

Supression des espace et des espace en double

Fri, 17 Oct 2014 06:01:39 +0200

function clean_trim($str) {
    // First remove the leading/trailing whitespace
    $str = trim($str);
    // Now remove any doubled-up whitespace
    $str = preg_replace('/\s(?=\s)/', '', $str);
    // Finally, replace any non-space whitespace, with a space
    $str = preg_replace('/[\n\r\t]/', ' ', $str);

    return $str;
}

Random String

Fri, 17 Oct 2014 05:58:01 +0200

/**
 * generate_rand
 *
 * chaine de caractère aléatoire.
 *
 * @param length nombre de caractères
 */
function generate_rand($length=4) {
    $chn = '';
    for ($i = 1; $i <= $length; $i++)
        $chn .=chr(floor(rand(0, 25) + 97));
    
    return $chn;
}

Chaîne de caractère aléatoire lisible

Fri, 17 Oct 2014 05:32:44 +0200

/**************
* Générer une chaîne de caractère aléatoire
*@length - longueur de chaîne aléatoire (doit être divisible par 2)
**************/
function readable_random_string($length = 6){
    $conso=array("b","c","d","f","g","h","j","k","l",
    "m","n","p","r","s","t","v","w","x","y","z");
    $vocal=array("a","e","i","o","u");
    $password="";
    srand ((double)microtime()*1000000);
    $max = $length/2;
    for($i=1; $i<=$max; $i++)
    {
    $password.=$conso[rand(0,19)];
    $password.=$vocal[rand(0,4)];
    }
    return $password;
}