PHP：对base64编码的IMAP主体进行解码

Question

PHP -IMAP I have saved all imap mail to database and displaying them from database. My problem is that one mail is showing "Content-Transfer-Encoding: base64". If i base64 decode it then other mails also get affected. I haven't been able to change it to human readable format till yet. Any help will be highly appreciated. I have tried many solution but The code currently I am using is,

mb_convert_encoding($body, "ISO-8859-1", "UTF-8");

The output of this mail is

------=_NextPart_001_0606_012497BF.12408D60
Content-Type: text/plain;
charset="utf-8"
Content-Transfer-Encoding: base64

 OTA5MTU5Mzg3DQoNCuS7juaKgOacr+i1sOWQkeeuoeeQhueahOWbm+S4quaguOW/gw0KMjAxMi05
 LTE1ICAxNjowMjoxNw==

 ------=_NextPart_001_0606_012497BF.12408D60
 Content-Type: text/html;
charset="utf-8"
 Content-Transfer-Encoding: base64

 PCFET0NUWVBFIEhUTUwgUFVCTElDICItLy9XM0MvL0RURCBIVE1MIDQuMCBUcmFuc2l0aW9uYWwv
 L0VOIj4NCjxIVE1MPjxIRUFEPg0KPE1FVEEgY29udGVudD0idGV4dC9odG1sOyBjaGFyc2V0PXV0
 Zi04IiBodHRwLWVxdWl2PUNvbnRlbnQtVHlwZT4NCjxNRVRBIG5hbWU9R0VORVJBVE9SIGNvbnRl
 bnQ9Ik1TSFRNTCA4LjAwLjYwMDEuMTg5OTkiPjwvSEVBRD4NCjxCT0RZPg0KPFA+PEZPTlQgc2l6
 ZT0yPjkwOTE1OTM4NzxCUj48QlI+5LuO5oqA5pyv6LWw5ZCR566h55CG55qE5Zub5Liq5qC45b+D
 PC9GT05UPjwvUD4NCjxQPjxGT05UIHNpemU9Mj4yMDEyLTktMTUmbmJzcDsgMTY6MDI6MTc8L0ZP
 TlQ+PC9QPjwvQk9EWT48L0hUTUw+DQo=

 ------=_NextPart_001_0606_012497BF.12408D60--

Answer 1

它是base64，您必须在主体部分使用base64_decode，如下所示：

base64_decode('OTA5MTU5Mzg3DQoNCuS7juaKgOacr+i1sOWQkeeuoeeQhueahOWbm+S4quaguOW/gw0KMjAxMi05LTE1ICAxNjowMjoxNw==');

Answer 2

just to manually check there are several online services like http://www.motobit.com/util/base64-decoder-encoder.asp

just copy and paste the base64 source and choose "decode". You will get a "human readyble format".