Ben SEO dostu başlıkları oluşturmak için bu işlevi kullanıyorum, ama geliştirilebilir düşünüyorum, herkes denemek ister misin? Bu bir şeyler yapar: Ortak aksanlı harfleri temizler, bir "yasak" dizisine karşı kontrol edin ve kullanımı başlıkların bir veritabanı karşı isteğe bağlı kontrol.
/**
* Recursive function that generates a unique "this-is-the-title123" string for use in URL.
* Checks optionally against $table and $field and the array $forbidden to make sure it's unique.
* Usage: the resulting string should be saved in the db with the object.
*/
function seo_titleinurl_generate($title, $forbidden = FALSE, $table = FALSE, $field = FALSE)
{
## 1. parse $title
$title = clean($title, "oneline"); // remove tags and such
$title = ereg_replace(" ", "-", $title); // replace spaces by "-"
$title = ereg_replace("á", "a", $title); // replace special chars
$title = ereg_replace("í", "i", $title); // replace special chars
$title = ereg_replace("ó", "o", $title); // replace special chars
$title = ereg_replace("ú", "u", $title); // replace special chars
$title = ereg_replace("ñ", "n", $title); // replace special chars
$title = ereg_replace("Ñ", "n", $title); // replace special chars
$title = strtolower(trim($title)); // lowercase
$title = preg_replace("/([^a-zA-Z0-9_-])/",'',$title); // only keep standard latin letters and numbers, hyphens and dashes
## 2. check against db (optional)
if ($table AND $field)
{
$sql = "SELECT * FROM $table WHERE $field = '" . addslashes($title) . "'";
$res = mysql_debug_query($sql);
if (mysql_num_rows($res) > 0)
{
// already taken. So recursively adjust $title and try again.
$title = append_increasing_number($title);
$title = seo_titleinurl_generate($title, $forbidden, $table, $field);
}
}
## 3. check against $forbidden array
if ($forbidden)
{
while (list ($key, $val) = each($forbidden))
{
// $val is the forbidden string
if ($title == $val)
{
$title = append_increasing_number($title);
$title = seo_titleinurl_generate($title, $forbidden, $table, $field);
}
}
}
return $title;
}
/**
* Function that appends an increasing number to a string, for example "peter" becomes "peter1" and "peter129" becomes "peter130".
* (To improve, this function could be made recursive to deal with numbers over 99999.)
*/
function append_increasing_number($title)
{
##. 1. Find number at end of string.
$last1 = substr($title, strlen($title)-1, 1);
$last2 = substr($title, strlen($title)-2, 2);
$last3 = substr($title, strlen($title)-3, 3);
$last4 = substr($title, strlen($title)-4, 4);
$last5 = substr($title, strlen($title)-5, 5); // up to 5 numbers (ie. 99999)
if (is_numeric($last5))
{
$last5++; // +1
$title = substr($title, 0, strlen($title)-5) . $last5;
} elseif (is_numeric($last4))
{
$last4++; // +1
$title = substr($title, 0, strlen($title)-4) . $last4;
} elseif (is_numeric($last3))
{
$last3++; // +1
$title = substr($title, 0, strlen($title)-3) . $last3;
} elseif (is_numeric($last2))
{
$last2++; // +1
$title = substr($title, 0, strlen($title)-2) . $last2;
} elseif (is_numeric($last1))
{
$last1++; // +1
$title = substr($title, 0, strlen($title)-1) . $last1;
} else
{
$title = $title . "1"; // append '1'
}
return $title;
}
