php - php utf8エンコーディング

Answer 1

次のコードを使用して、無効なUTF-8文字を削除できます。

$text = iconv("UTF-8","UTF-8//IGNORE",$text); 

Answer 2

これを使って

<?php
 $headers   = array();
 $headers[] = "MIME-Version: 1.0";
 $headers[] = "Content-type: text/plain; charset=iso-8859-1";
 $headers[] = "From: Sender Name <sender@domain.com>";
 $headers[] = "Bcc: JJ Chong <bcc@domain2.com>";
 $headers[] = "Reply-To: Recipient Name <receiver@domain3.com>";
 $headers[] = "Subject: {$subject}";
 $headers[] = "X-Mailer: PHP/".phpversion();

mail($to, $subject, $email, implode("\r\n", $headers));
 ?>