如何修复此错误？
A PHP Error was encountered
Severity: Notice
Message: iconv() [function.iconv]: Detected an illegal character in input string
Filename: Common/Utf8.php
Line Number: 77
A PHP Error was encountered
Severity: Notice
Message: iconv() [function.iconv]: Detected an illegal character in input string
Filename: Lucene/Field.php
Line Number: 222
这些是我输入的字符。
ŸeÈ╬fý↔5ƒ1
我尝试保存到 lucene 字段中。
附言
使用此代码处理输入
htmlentities($input, ENT_COMPAT, 'UTF-8');
我正在使用 PHP 5.2.17 和 Zend Framework 1.12.0