Modifies a string to remove all non ASCII characters and spaces.

toSlug

/**
 * Modifies a string to remove all non ASCII characters and spaces.
 * Note : Works with UTF-8
 *
 * @param  string 		$string The text to slugify
 * @return string		The slugified text
 */
function toSlug ($string) {
	$string = utf8_decode($string);
	$string = html_entity_decode($string);
	
	$a = 'ÀÁÂÃÄÅàáâãäåÒÓÔÕÖØòóôõöøÈÉÊËèéêëÇçÌÍÎÏìíîïÙÚÛÜùúûüÿÑñ';
	$b = 'AAAAAAaaaaaaOOOOOOooooooEEEEeeeeCcIIIIiiiiUUUUuuuuyNn';
	$string = strtr($string, utf8_decode($a), $b);
	
	$ponctu = array("?", ".", "!", ",");
	$string = str_replace($ponctu, "", $string);
	
	$string = trim($string);
	$string = preg_replace('/([^a-z0-9]+)/i', '-', $string);
	$string = strtolower($string);
	
	$string = trim($string, '-');
	
	return utf8_encode($string);
}