php - php删除无效字符

Question

当我使用$dom->loadHTML('<?xml version="1.0" encoding="UTF-8"?>' . $html);.

Warning: DOMDocument::loadHTML() [domdocument.loadhtml]: Char 0xD860 out of allowed range in Entity, line: 1 in D:\xampp\xampp\htdocs\xampp\similarity\functions.php on line 438
Warning: DOMDocument::loadHTML() [domdocument.loadhtml]: Char 0xDEE2 out of allowed range in Entity, line: 1 in D:\xampp\xampp\htdocs\xampp\similarity\functions.php on line 438
Warning: DOMDocument::loadHTML() [domdocument.loadhtml]: Invalid char in CDATA 0x3 in Entity, line: 1 in D:\xampp\xampp\htdocs\xampp\similarity\functions.php on line 438

如何使用 php 定位和删除那些“无效”字符？

安德烈

Answer 1

未经测试，但这应该有效：

$buffer = ob_get_clean();
$tidy = new tidy();
$myHTML = $tidy->repairString('<?xml version="1.0" encoding="UTF-8"?>' . $html);

$dom->loadHTML($myHTML);