<?php throw new \RuntimeException('Unable to convert a non-UTF-8 string to UTF-8: required function iconv() does not exist. You should install ext-iconv or symfony/polyfill-iconv.');
}
if (false !== $c = @iconv($this->charset, 'UTF-8', $s)) {
return $c;
}
if ('CP1252' !== $this->charset && false !== $c = @iconv('CP1252', 'UTF-8', $s)) {