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  1. <?php
  2. echo 'mb_internal_encoding: ', mb_internal_encoding(), "\n";
  3.  
  4. $str = 'ああｱｱ';
  5. mb_language('en');
  6. echo "--- language: en ---\n";
  7. echo 'info: ', mb_get_info('mail_charset'), '/', mb_get_info('mail_header_encoding'), "\n";
  8. echo 'mb_encode_mimeheader($str): ', mb_encode_mimeheader($str), "\n";
  9. echo 'mb_encode_mimeheader($str, "iso-2022-jp"): ', mb_encode_mimeheader($str, "iso-2022-jp"), "\n";
  10.  
  11. mb_language('ja');
  12. echo "--- language: ja ---\n";
  13. echo 'info: ', mb_get_info('mail_charset'), '/', mb_get_info('mail_header_encoding'), "\n";
  14. echo 'mb_encode_mimeheader($str): ', mb_encode_mimeheader($str), "\n";
  15. echo 'mb_encode_mimeheader($str, "iso-2022-jp"): ', mb_encode_mimeheader($str, "iso-2022-jp"), "\n";
Success #stdin #stdout 0.02s 52432KB
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stdin
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Standard input is empty
stdout
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mb_internal_encoding: UTF-8
--- language: en ---
info: ISO-8859-1/Quoted-Printable
mb_encode_mimeheader($str): =?ISO-8859-1?Q?=3F=3F=3F=3F?=
mb_encode_mimeheader($str, "iso-2022-jp"): =?ISO-2022-JP?B?GyRCJCIkIhsoQj8/?=
--- language: ja ---
info: ISO-2022-JP/BASE64
mb_encode_mimeheader($str): =?ISO-2022-JP?B?GyRCJCIkIhsoQj8/?=
mb_encode_mimeheader($str, "iso-2022-jp"): =?ISO-2022-JP?B?GyRCJCIkIhsoQj8/?=
https://ideone.com/KtgtZD
mb_languageによる挙動の違い
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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