PHP mb_decode_mimeheader() Function
Last Updated :
28 Mar, 2023
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The mb_decode_mimeheader() function is an inbuilt function in PHP where the string is decoded into the MIME header field.
Syntax:
mb_decode_mimeheader(string $string): string
Parameter: This function has a single parameter:
- string: This parameter specifies the string that is to be decoded.
Return Value: The decoded string will be returned in internal character encoding.
Example 1: The following code demonstrates the mb_decode_mimeheader() function
<?php
// MIME-encoded header string
$header_string = "=?ISO-8859-1?Q?Caf=E9_au_lait?=";
// Decode the header string
$decoded_string = mb_decode_mimeheader($header_string);
// Output the decoded string
echo $decoded_string;
?>
<?php
// MIME-encoded header string
$header_string = "=?ISO-8859-1?Q?Caf=E9_au_lait?=";
// Decode the header string
$decoded_string = mb_decode_mimeheader($header_string);
// Output the decoded string
echo $decoded_string;
?>
Output:
Café_au_lait
Example 2: The following code demonstrates the mb_decode_mimeheader() function
<?php
// Array of MIME-encoded header strings
$headers = [
"=?ISO-8859-1?Q?Caf=E9_au_lait?=",
"=?ISO-8859-1?Q?Bj=F6rk?=",
"=?ISO-8859-1?Q?M=F6tley_Cr=FCe?=",
];
// Decode the header strings
mb_convert_variables("UTF-8", "ISO-8859-1", $headers);
array_walk($headers, function (&$value) {
$value = mb_decode_mimeheader($value);
});
// Output the decoded strings
var_dump($headers);
?>
<?php
// Array of MIME-encoded header strings
$headers = [
"=?ISO-8859-1?Q?Caf=E9_au_lait?=",
"=?ISO-8859-1?Q?Bj=F6rk?=",
"=?ISO-8859-1?Q?M=F6tley_Cr=FCe?=",
];
// Decode the header strings
mb_convert_variables("UTF-8", "ISO-8859-1", $headers);
array_walk($headers, function (&$value) {
$value = mb_decode_mimeheader($value);
});
// Output the decoded strings
var_dump($headers);
?>
Output:
array(3) { [0]=> string(13) "Café_au_lait" [1]=> string(6) "Björk" [2]=> string(13) "Mötley_Crüe" }
Reference: https://www.php.net/manual/en/function.mb-decode-mimeheader.php