PHP – Get aliases of a known encoding type using mb_encoding_aliases()

In PHP, mb_encoding_aliases() is used to get the aliases of a known encoding type. This function is supported in PHP 5 or higher version.

Syntax

array mb_encoding_aliases(str $encoding)

Parameters

It accepts only one parameter, $encoding, which is the encoding type checked for aliases.

Return Values

It returns a numerically indexed array of encoding aliases on success or it returns False on failure.

Errors/Exceptions

If the encoding is not known, then it gives an E_WARNING level error.

Example 1

<?php
   $encoding = 'ASCII';
   $known_encodings = mb_list_encodings();

   if (in_array($encoding, $known_encodings))
   {
      $aliases = mb_encoding_aliases($encoding);
      print_r($aliases);
   }
   else
   {
      echo "Unknown ($encoding) encoding.
";
   }
?>

Output

Array
(
   [0] => ANSI_X3.4-1968
   [1] => iso-ir-6
   [2] => ANSI_X3.4-1986
   [3] => ISO_646.irv:1991
   [4] => US-ASCII
   [5] => ISO646-US
   [6] => us
   [7] => IBM367
   [8] => IBM-367
   [9] => cp367
   [10] => csASCII
)

Example 2

<?php
   $array = mb_encoding_aliases("ASCII");
   var_dump($array);
?>

Output

array(11) {
   [0]=>
   string(14) "ANSI_X3.4-1968"
   [1]=>
   string(8) "iso-ir-6"
   [2]=>
   string(14) "ANSI_X3.4-1986"
   [3]=>
   string(16) "ISO_646.irv:1991"
   [4]=>
   string(8) "US-ASCII"
   [5]=>
   string(9) "ISO646-US"
   [6]=>
   string(2) "us"
   [7]=>
   string(6) "IBM367"
   [8]=>
   string(7) "IBM-367"
   [9]=>
   string(5) "cp367"
   [10]=>
   string(7) "csASCII"
}