# sapi_windows_cp_conv

(PHP 7 >= 7.1.0)

sapi_windows_cp_conv — Convert string from one codepage to another

### 说明

sapi_windows_cp_conv ( int|string `$in_codepage` , int|string `$out_codepage` , string `$subject` ) : string

Convert string from one codepage to another.

### 参数

`in_codepage`

  The codepage of the `subject` string. Either the codepage name or identifier.

`out_codepage`

  The codepage to convert the `subject` string to. Either the codepage name or identifier.

`subject`

  The string to convert.

### 返回值

The `subject` string converted to `out_codepage`, or `NULL` on failure.

### 错误／异常

This function issues E_WARNING level errors, if invalid codepages are given, or if the subject is not valid for `in_codepage`.

### 参见

- sapi_windows_cp_get() - Get process codepage
- iconv() - 字符串按要求的字符编码来转换