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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 |
---|---|
1170 | } else { |
1171 | $salt = get_option('logged_in_salt'); |
1172 | if ( empty($salt) ) { |
1173 | $salt = wp_generate_password(); |
1174 | update_option('logged_in_salt', $salt); |
1175 | } |
1176 | } |
1177 | } |
1178 |
|
1179 | return apply_filters('salt', $secret_key . $salt, $scheme); |
1180 | } |
1181 | endif; |
1182 |
|
1183 | if ( !function_exists('wp_hash') ) : |
1184 | /** |
1185 | * Get hash of given string. |
1186 | * |
1187 | * @since 2.0.4 |
1188 | * @uses wp_salt() Get WordPress salt |