IMAP 函数
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PHP手册

imap_qprint

(PHP 4, PHP 5)

imap_qprint — Convert a quoted-printable string to an 8 bit string

说明

string imap_qprint ( string $string )

Convert a quoted-printable string to an 8 bit string according to » RFC2045, section 6.7.

参数

string

A quoted-printable string

返回值

Returns an 8 bits string.

参见

IMAP 函数
在线手册：中文 英文
PHP手册
PHP手册 - N: Convert a quoted-printable string to an 8 bit string

用户评论:

wese at gmx dot at (11-Nov-2008 02:52)

I just got rid of the loops using a regex.

<?php
function decode_qprint($str) {
    $str = preg_replace("/\=([A-F][A-F0-9])/","%$1",$str);
    $str = urldecode($str);
    $str = utf8_encode($str);
    return $str;
}
?>

Thanks for sharing!

tonitester at gmx dot net (27-Mar-2007 02:35)

If you don't have access to the imap_qprint function and you have to encode URL Decoded and Quoted Printable Strings you receive by Mail try this simple function. But if you don't receive URL Decoded data and the string doesn't contain an = you better use http://www.php.net/manual/en/function.quoted-printable-decode.php

function decode_qprint($str){
$arr= array("A","B","C","D","E","F");
while (list(, $var) = each($arr)) {   
    $i=0;
    while ($i <=9){
        $str=str_replace("=".$var.$i,"%".$var.$i,$str);
        $i++;}
    $arr2 = array("A","B","C","D","E","F");
    while (list(, $val) = each($arr2)) {
        $str=str_replace("=".$var.$val,"%".$var.$val,$str);}}
$str = urldecode($str);
$str = utf8_encode($str);
return $str;}

$s2d='=F6=D6=DF=C4=E4=DC=FC=A9=AE';
$2s2d='%F6';

$output = decode_qprint($s2d);
$output2 = decode_qprint($2s2d);

echo $output;
echo $output2;

bletous at yahoo dot fr (28-Aug-2005 01:55)

Some mails are encoded in bad quoted printable format:
I use this function to decode the qprint:

for($i=0;$i<256;$i++)
    {
    $c1=dechex($i);
    if(strlen($c1)==1){$c1="0".$c1;}
    $c1="=".$c1;
    $myqprinta[]=$c1;
    $myqprintb[]=chr($i);
    }

function decode($data,$code)
{ 
if(!$code){return imap_utf7_decode($data);}
if($code==0){return imap_utf7_decode($data);}
if($code==1){return imap_utf8($data);}
if($code==2){return ($data);}
if($code==3){return imap_base64($data);}
if($code==4){return imap_qprint(str_replace($myqprinta,$myqprintb,($data)));}
if($code==5){return ($data);}

}

jdr (16-Jul-2003 05:28)

$subject=utf8_decode(imap_utf8($subject));

works instead of imap_qprint on php 4.2.0 (win32)

bernard at bmpsystems dot com (26-Feb-2000 08:35)

This function seems to have a bug, when the quoted-printable string contains a "=" without the HEX code of a Character.
I use the regular quoted_printable_decode instead.