# ZipArchive::setEncryptionIndex

(PHP >= 7.2.0, PECL zip >= 1.14.0)

ZipArchive::setEncryptionIndex — Set the encryption method of an entry defined by its index

### Description

public ZipArchive::setEncryptionIndex ( int `$index` , int `$method` [, string `$password` ] ) : bool

Set the encryption method of an entry defined by its index.

### Parameters

`index`

  Index of the entry.

`method`

  The encryption method defined by one of the ZipArchive::EM_ constants.

`password`

  Optional password, default used when missing.

### Return Values

Returns `TRUE` on success or `FALSE` on failure.

### Notes

> Note:

> This function is only available if built against libzip ≥ 1.2.0.

### See Also

- ZipArchive::setPassword() - Set the password for the active archive
- ZipArchive::setEncryptionName() - Set the encryption method of an entry defined by its name