Get the prefix of the preferred hash method

# crypt_preferred_method

(PECL xpass >= 1.1.0)

crypt_preferred_method — Get the prefix of the preferred hash method

### Description

crypt_preferred_method(): ?string

Get the prefix of the preferred hash method.

### Parameters

This function has no parameters.

### Return Values

Returns a string with the prefix, or `null` in case of an error.

### Examples

Example #1 A crypt_preferred_method() example

`<?php
var_dump(crypt_preferred_method());
?>`

The above example will output:

    string(3) "$y$"

### See Also

- crypt_gensalt() - Compile a string for use as the salt argument to crypt

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