问在将数据传递给Solr master索引之前，解析数据中的空格、制表符和其他不可打印的字符是不是很糟糕？

EN

<?php$text = '<div>This is a sample text to be indexed</div>';
//Remove HTML tags
$text_refined1 = strip_tags($text);
//Remove non-printable unicode characters
$text_refined2 = preg_replace('/[\x00-\x08\x0B\x0C\x0E-\x1F\x80-\x9F]/u',    '', $text_refined1);
//Remove line feeds, carriage returns and tabs
$text_refined3 = preg_replace('/\s+/', '', $text_refined2);
echo $text_refined3;