# mb_encoding_aliases

(PHP 5 >= 5.3.0, PHP 7)

mb_encoding_aliases — Get aliases of a known encoding type

### 说明

mb_encoding_aliases ( string `$encoding` ) : array

Returns an array of aliases for a known `encoding` type.

### 参数

`encoding`

  The encoding type being checked, for aliases.

### 返回值

Returns a numerically indexed array of encoding aliases on success, 或者在失败时返回 `FALSE`

### 错误／异常

Emits an `E_WARNING` level error if `encoding` is unknown.

### 范例

Example #1 mb_encoding_aliases() example

    <?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.\n";

    }
    ?>

以上例程的输出类似于：

    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] => cp367
        [9] => csASCII
    )

### 参见

- mb_list_encodings() - 返回所有支持编码的数组