<?php preg_replace( string|array $pattern, string|array $replacement, string|array $subject, int $limit = -1, int &$count = null): string|array|null
<?php $this->text = preg_replace('/&(#(?:x[a-fA-F0-9]+|[0-9]+);)/', '&\1', $this->text); $this->text = mb_encode_numericentity($this->text, array(0x0080, 0xffff, 0, 0xffff), 'UTF-8');
