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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.
Line | Code |
---|---|
1048 | $salt = SECRET_SALT; |
1049 | } else { |
1050 | $salt = get_option('secret'); |
1051 | if ( empty($salt) ) { |
1052 | $salt = wp_generate_password(); |
1053 | update_option('secret', $salt); |
1054 | } |
1055 | } |
1056 |
|
1057 | return apply_filters('salt', $secret_key . $salt); |
1058 | } |
1059 | endif; |
1060 |
|
1061 | if ( !function_exists('wp_hash') ) : |
1062 | /** |
1063 | * wp_hash() - Get hash of given string |
1064 | * |
1065 | * @since 2.0.4 |
1066 | * @uses wp_salt() Get WordPress salt |