iconv_mime_encode Composes a MIME header field
发表日期:2021-07-01 08:55:46 | 来源: | | 浏览(1267) 分类:iconv 函数
iconv_mime_encode
(PHP 5, PHP 7, PHP 8)
iconv_mime_encode — Composes a MIME
header field
说明
iconv_mime_encode(string $field_name
, string $field_value
, array $options
= []): string|false
Composes and returns a string that represents a valid MIME
header field, which looks like the following:
Subject: =?ISO-8859-1?Q?Pr=FCfung_f=FCr?= Entwerfen von einer MIME kopfzeile
In the above example, "Subject" is the field name and the portion that begins with "=?ISO-8859-1?..." is the field value.
参数
field_name
The field name.
field_value
The field value.
options
You can control the behaviour of iconv_mime_encode() by specifying an associative array that contains configuration items to the optional third parameter
options
. The items supported by iconv_mime_encode() are listed below. Note that item names are treated case-sensitive.Configuration items supported by iconv_mime_encode() Item Type Description Default value Example scheme string Specifies the method to encode a field value by. The value of this item may be either "B" or "Q", where "B" stands for base64
encoding scheme and "Q" stands forquoted-printable
encoding scheme.B B input-charset string Specifies the character set in which the first parameter field_name
and the second parameterfield_value
are presented. If not given,iconv_mime_encode() assumes those parameters are presented to it in the iconv.internal_encoding ini setting.iconv.internal_encoding ISO-8859-1 output-charset string Specifies the character set to use to compose the MIME
header.iconv.internal_encoding UTF-8 line-length int Specifies the maximum length of the header lines. The resulting header is "folded" to a set of multiple lines in case the resulting header field would be longer than the value of this parameter, according to » RFC2822 - Internet Message Format. If not given, the length will be limited to 76 characters. 76 996 line-break-chars string Specifies the sequence of characters to append to each line as an end-of-line sign when "folding" is performed on a long header field. If not given, this defaults to "\r\n" ( CR
LF
). Note that this parameter is always treated as an ASCII string regardless of the value ofinput-charset
.\r\n \n
返回值
Returns an encoded MIME
field on success,
or false
if an error occurs during the encoding.
范例
示例 #1 iconv_mime_encode() example
<?php $preferences = array("input-charset" => "ISO-8859-1","output-charset"=>"UTF-8","line-length"=>76,"line-break-chars" => "\n"); $preferences["scheme"] = "Q"; // This yields "Subject: =?UTF-8?Q?Pr=C3=BCfung=20Pr=C3=BCfung?=" echo iconv_mime_encode("Subject", "Prüfung Prüfung", $preferences); $preferences["scheme"] = "B"; // This yields "Subject: =?UTF-8?B?UHLDvGZ1bmcgUHLDvGZ1bmc=?=" echo iconv_mime_encode("Subject", "Prüfung Prüfung", $preferences); ?>
参见
imap_binary() - Convert an 8bit string to a base64 string
mb_encode_mimeheader() - 为 MIME 头编码字符串
imap_8bit() - Convert an 8bit string to a quoted-printable string
quoted_printable_encode() - 将 8-bit 字符串转换成 quoted-printable 字符串
- PHP(0)
- PHP杂项(34)
- PHP基础-李炎恢系列课程(20)
- 中文函数手册(0)
- 错误处理 函数(13)
- OPcache 函数(6)
- PHP 选项/信息 函数(54)
- Zip 函数(10)
- Hash 函数(15)
- OpenSSL 函数(63)
- Date/Time 函数(51)
- 目录函数(9)
- Fileinfo 函数(6)
- iconv 函数(11)
- iconv_get_encoding 获取 iconv 扩展的内部配置变量(0)
- iconv_mime_decode_headers 一次性解码多个 MIME 头字段(0)
- iconv_mime_decode 解码一个MIME头字段(0)
- iconv_mime_encode Composes a MIME header field(0)
- iconv_set_encoding 为字符编码转换设定当前设置(0)
- iconv_strlen 返回字符串的字符数统计(0)
- iconv_strpos Finds position of first occurrence of a needle within a haystack(0)
- iconv_strrpos Finds the last occurrence of a needle within a haystack(0)
- iconv_substr 截取字符串的部分(0)
- iconv 字符串按要求的字符编码来转换(0)
- ob_iconv_handler 以输出缓冲处理程序转换字符编码(0)
- 文件系统函数(81)
- 多字节字符串 函数(57)
- GD 和图像处理 函数(114)
- 可交换图像信息(5)
- Math 函数(50)
- 程序执行函数(11)
- PCNTL 函数(23)
- JSON 函数(4)
- SPL 函数(15)
- URL 函数(10)
- cURL 函数(32)
- 网络 函数(33)
- FTP 函数(36)
- Session 函数(23)
- PCRE 函数(11)
- PCRE 正则语法(19)
- 数组 函数(81)
- 类/对象 函数(18)
- 函数处理 函数(13)
- 变量处理 函数(37)
- SimpleXML 函数(3)
- 杂项 函数(31)
- 字符串 函数(101)