# imap_mime_header_decode

(PHP 4, PHP 5, PHP 7)

imap_mime_header_decode — Decode MIME header elements

### 说明

imap_mime_header_decode ( string `$text` ) : array

Decodes MIME message header extensions that are non ASCII text (see » RFC2047).

### 参数

`text`

  The MIME text

### 返回值

The decoded elements are returned in an array of objects, where each object has two properties, charset and text.

If the element hasn't been encoded, and in other words is in plain US-ASCII, the charset property of that element is set to default.

### 范例

Example #1 imap_mime_header_decode() example

    <?php
    $text = "=?ISO-8859-1?Q?Keld_J=F8rn_Simonsen?= <keld@example.com>";

    $elements = imap_mime_header_decode($text);
    for ($i=0; $i<count($elements); $i++) {
        echo "Charset: {$elements[$i]->charset}\n";
        echo "Text: {$elements[$i]->text}\n\n";
    }
    ?>

以上例程会输出：

    Charset: ISO-8859-1
    Text: Keld Jørn Simonsen

    Charset: default
    Text:  <keld@example.com>

In the above example we would have two elements, whereas the first element had previously been encoded with ISO-8859-1, and the second element would be plain US-ASCII.

### 参见

- imap_utf8() - Converts MIME-encoded text to UTF-8