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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
Line | Code |
---|---|
1991 | /** |
1992 | * Filters the WordPress salt. |
1993 | * |
1994 | * @since 2.5.0 |
1995 | * |
1996 | * @param string $cached_salt Cached salt for the given scheme. |
1997 | * @param string $scheme Authentication scheme. Values include 'auth', |
1998 | * 'secure_auth', 'logged_in', and 'nonce'. |
1999 | */ |
2000 | return apply_filters( 'salt', $cached_salts[ $scheme ], $scheme ); |
2001 | } |
2002 |
|
2003 | static $duplicated_keys; |
2004 | if ( null === $duplicated_keys ) { |
2005 | $duplicated_keys = array( 'put your unique phrase here' => true ); |
2006 | foreach ( array( 'AUTH', 'SECURE_AUTH', 'LOGGED_IN', 'NONCE', 'SECRET' ) as $first ) { |
2007 | foreach ( array( 'KEY', 'SALT' ) as $second ) { |
2008 | if ( ! defined( "{$first}_{$second}" ) ) { |
2009 | continue; |
Line | Code |
2046 | update_site_option( 'secret_key', $values['key'] ); |
2047 | } |
2048 | } |
2049 | $values['salt'] = hash_hmac( 'md5', $scheme, $values['key'] ); |
2050 | } |
2051 |
|
2052 | $cached_salts[ $scheme ] = $values['key'] . $values['salt']; |
2053 |
|
2054 | /** This filter is documented in wp-includes/pluggable.php */ |
2055 | return apply_filters( 'salt', $cached_salts[ $scheme ], $scheme ); |
2056 | } |
2057 | endif; |
2058 |
|
2059 | if ( !function_exists('wp_hash') ) : |
2060 | /** |
2061 | * Get hash of given string. |
2062 | * |
2063 | * @since 2.0.3 |
2064 | * |