public function sure()
    {
        return !(substr($this->args[0], 0, 4) == 'http'
            || substr($this->args[0], 0, 3) == '../'
            || substr($this->args[0], 0, 3) == '\./'
            || substr($this->args[0], 0, 2) == './'
            || substr($this->args[0], 0, 1) == '/'
        );
    }
public function sure()
    {
        return !(substr($this->args[0], 0, 4) == 'http'
            || substr($this->args[0], 0, 3) == '../'
            || substr($this->args[0], 0, 3) == '\./'
            || substr($this->args[0], 0, 2) == './'
            || substr($this->args[0], 0, 1) == '/'
        );
    }
public function sure ( ) { return ! ( substr ( $ this -> args [ 0 ] , 0 , 4 ) == 'http' || substr ( $ this -> args [ 0 ] , 0 , 3 ) == '../' || substr ( $ this -> args [ 0 ] , 0 , 3 ) == '\./' || substr ( $ this -> args [ 0 ] , 0 , 2 ) == './' || substr ( $ this -> args [ 0 ] , 0 , 1 ) == '/' ) ; }
Don't use this module if content looks like an url.

@return boolean
Don t use this module if content looks like an url .