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PHP mb_encoding_aliases() Function

Last Updated : 29 Mar, 2023

The mb_encoding_aliases() is an inbuilt PHP function that can be utilized to retrieve aliases for a known encoding type.

Syntax:

mb_encoding_aliases(string $encoding): array

Parameter: This function has only one parameter:

encoding: This parameter specifies the encoding type that is to be checked for aliases.

Return value: The numerically indexed array for encoding aliases will be returned.

Example 1: The following code demonstrates the mb_encoding_aliases() function.

PHP

<?php
$aliases = mb_encoding_aliases('UTF-8');
print_r($aliases);    
?>

Output

Array
(
    [0] => utf8
)

Example 2: The following code demonstrates the mb_encoding_aliases() function.

PHP

<?php
  
// An alias for GBK encoding
$alias = 'cp936';

if (in_array($alias, mb_encoding_aliases('GBK'))) {
    echo "$alias is a valid encoding alias for GBK";
} 
else {
    echo "$alias is not a valid encoding alias for GBK";
} 
?>

Output

cp936 is not a valid encoding alias for GBK

Reference: https://www.php.net/manual/en/function.mb-encoding-aliases.php

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