imap_qprint

(PHP 4, PHP 5, PHP 7, PHP 8)

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

说明

imap_qprint ( string $string ) : string|false

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, 或者在失败时返回 false.

参见

imap_8bit() - Convert an 8bit string to a quoted-printable string

User Contributed Notes

wese at gmx dot at 11-Nov-2008 06:52


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 06:35


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 27-Aug-2005 05:55


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);}



}

bernard at bmpsystems dot com 26-Feb-2000 12:35


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.