1

@@ -51,7 +51,7 @@ class DeCoding {
                 if (!($bEmulate_imap_8bit && ($i==count($aLines)-1)))
 
                     if (($iLastChar==0x09)||($iLastChar==0x20)) {
-                        $sLine{$iLength-1}='=';
+                        $sLine[$iLength-1]='=';
                         $sLine .= ($iLastChar==0x09)?'09':'20';
                     }
             }    // imap_8bit encodes x20 before chr(13), too

@@ -26,36 +26,6 @@ class MailFun {
     }
 
 
-    /**
-     * 解码
-     * @param $string
-     * @param string $charset
-     * @return string
-     * @time 2022/8/15 9:31
-     */
-    public static function decodeMimeStr($string, $charset = 'utf-8') {
-        $newString = '';
-        $elements = \imap_mime_header_decode($string);
-//        print_r($elements);
-        for($i = 0; $i < count($elements); $i++) {
-            if($elements[$i]->charset == 'default') {
-                $elements[$i]->charset = 'iso-8859-1';
-            }
-            $newString .= self::convertStringEncoding($elements[$i]->text, $elements[$i]->charset, $charset);
-        }
-        return $newString;
-    }
-
-    public static function convertStringEncoding($string, $fromEncoding, $toEncoding) {
-        $convertedString = null;
-        if($string && $fromEncoding != $toEncoding) {
-            $convertedString = @iconv($fromEncoding, $toEncoding . '//IGNORE', $string);
-            if(!$convertedString && extension_loaded('mbstring')) {
-                $convertedString = @mb_convert_encoding($string, $toEncoding, $fromEncoding);
-            }
-        }
-        return $convertedString ?: $string;
-    }
 
 
     /**