/**
* Clean a string
*
* @static
* @param string $str string to clean
* @param boolean $deep If true replace '.' too
* @param boolean $negative If true replace - with _
* @return string
*/
public static function unspace($str, $deep = false, $negative = false)
{
$str = trim($str);
$str = X4Utils_helper::to7bit($str, 'UTF-8');
$str = strtolower(html_entity_decode($str));
if (function_exists('preg_replace_callback')) {
// strip special chars
$str = preg_replace_callback('/[àèéìòùç]+/is', function ($m) {
$r = '';
switch ($m[0]) {
case 'à':
$r = 'a';
break;
case 'è':
case 'é':
$r = 'e';
break;
case 'ì':
$r = 'i';
break;
case 'ò':
$r = 'o';
break;
case 'ù':
$r = 'u';
break;
case 'ç':
$r = 'c';
break;
}
return $r;
}, $str);
// clean
$regex = $deep ? '/[^a-z0-9-]+/is' : '/[^a-z0-9-\\/\\.]+/is';
$res = preg_replace_callback($regex, function ($m) {
return '-';
}, $str);
// remove duplicates
$res = preg_replace_callback('/-(-*)/', function ($m) {
return '-';
}, $res);
} else {
$str = preg_replace('/[àèéìòùç]+/e', '-', $str);
// clean
$res = $deep ? preg_replace('/[^a-z0-9-\\.]+/', '-', $str) : preg_replace('/[^a-z0-9-\\/\\.]+/', '-', $str);
// remove duplicates
$res = preg_replace('/-(-*)/', '-', $res);
}
return $negative ? str_replace('-', '_', $res) : $res;
}
