最好的邮件编码解码类，再没有比这个好的了贴不下了1

class mime_decode { var $content = Array(); function mime_encode_headers($string) { if($string == "") return; if(!eregi("^([[:print:]]*)$",$string)) $string = "=?ISO-8859-1?Q?".str_replace("+","_",str_replace("%","=",urlencode($string)))."?="; return $string; } function decode_mime_string($string) { if(($pos = strpos($string,"=?")) === false) return $string; while(!($pos === false)) { $newresult .= substr($string,0,$pos); $string = substr($string,$pos+2,strlen($string)); $intpos = strpos($string,"?"); $charset = substr($string,0,$intpos); $enctype = strtolower(substr($string,$intpos+1,1)); $string = substr($string,$intpos+3,strlen($string)); $endpos = strpos($string,"?="); $mystring = substr($string,0,$endpos); $string = substr($string,$endpos+2,strlen($string)); if($enctype == "q") { $mystring = str_replace("_"," ",$mystring); $mystring = $this->decode_qp($mystring); } else if ($enctype == "b") $mystring = base64_decode($mystring); $newresult .= $mystring; $pos = strpos($string,"=?"); } return $newresult.$string; } function decode_header($header) { $headers = explode(" ",$header); $decodedheaders = Array(); for($i=0;$i"; $closed = 1; for($i=0;$i", $thisPart, $regs)) { $email = trim($regs[2]); $name = trim($regs[1]); } else { if (eregi("([-a-z0-9_$+.]+@[-a-z0-9_.]+[-a-z0-9_]+)((.*))", $thisPart, $regs)) { $email = $regs[1]; $name = $regs[2]; } else $email = $thisPart; } $email = eregi_replace("^$", "\1", $email); $name = eregi_replace("^"(.*)"$", "\1", trim($name)); $name = eregi_replace("^((.*))$", "\1", $name); if ($name == "") $name = $email; if ($email == "") $email = $name; $ARfrom[$i]["name"] = $this->decode_mime_string($name); $ARfrom[$i]["mail"] = $email; unset($name);unset($email); } } return $ARfrom; } function build_alternative_body($ctype,$body) { global $mime_show_html; $boundary = $this->get_boundary($ctype); $part = $this->split_parts($boundary,$body); $thispart = ($mime_show_html)?$part[1]:$part[0]; $email = $this->fetch_structure($thispart); $header = $email["header"]; $body = $email["body"]; $headers = $this->decode_header($header); $body = $this->compile_body($body,$headers["content-transfer-encoding"]); return $body; } function build_related_body($ctype,$body) { global $mime_show_html,$sid,$lid,$ix,$folder; $Rtype = trim(substr($ctype,strpos($ctype,"type=")+5,strlen($ctype))); if(strpos($Rtype,";") != 0) $Rtype = substr($Rtype,0,strpos($Rtype,";")); if(substr($Rtype,0,1) == """ && substr($Rtype,-1) == """) $Rtype = substr($Rtype,1,strlen($Rtype)-2); $boundary = $this->get_boundary($ctype); $part = $this->split_parts($boundary,$body); for($i=0;$ifetch_structure($part[$i]); $header = $email["header"]; $body = $email["body"]; $headers = $this->decode_header($header); $ctype = $headers["content-type"]; $cid = $headers["content-id"]; $Actype = split(";",$headers["content-type"]); $types = split("/",$Actype[0]); $rctype = strtolower($Actype[0]); if($rctype == "multipart/alternative") $msgbody = $this->build_alternative_body($ctype,$body); elseif($rctype == "text/plain" && strpos($headers["content-disposition"],"name") === false) { $body = $this->compile_body($body,$headers["content-transfer-encoding"]); $msgbody = $this->build_text_body($body); } elseif($rctype == "text/html" && strpos($headers["content-disposition"],"name") === false) { $body = $this->compile_body($body,$headers["content-transfer-encoding"]); if(!$mime_show_html) $body = $this->build_text_body(strip_tags($body)); $msgbody = $body; } else { $thisattach = $this->build_attach($header,$body,$boundary,$i); if($cid != "") { if(substr($cid,0,1) == "") $cid = substr($cid,1,strlen($cid)-2); $cid = "cid:$cid"; $thisfile = "download.php?sid=$sid&lid=$lid&folder=".urlencode($folder)."&ix=".$ix."&bound=".base64_encode($thisattach["boundary"])."&part=".$thisattach["part"]."&filename=".urlencode($thisattach["name"]); $msgbody = str_replace($cid,$thisfile,$msgbody); } } } return $msgbody; } function linesize($message="", $length=70) { $line = explode(" ",$message); unset($message); for ($i=0 ;$i $length and $buf_o != "") { $message .= "$buf_o "; $buf = $line_part[$e]; } } $message .= "$buf "; } return($message); }