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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 |
|---|---|
| 169 | * @return mixed WP_User object if authentication passed, false otherwise |
| 170 | */ |
| 171 | function login( $username, $password ) { |
| 172 | // Respect any old filters against get_option() for 'enable_xmlrpc'. |
| 173 | $enabled = apply_filters( 'pre_option_enable_xmlrpc', false ); // Deprecated |
| 174 | if ( false === $enabled ) |
| 175 | $enabled = apply_filters( 'option_enable_xmlrpc', true ); // Deprecated |
| 176 | |
| 177 | // Proper filter for turning off XML-RPC. It is on by default. |
| 178 | $enabled = apply_filters( 'xmlrpc_enabled', $enabled ); |
| 179 | |
| 180 | if ( ! $enabled ) { |
| 181 | $this->error = new IXR_Error( 405, sprintf( __( 'XML-RPC services are disabled on this site.' ) ) ); |
| 182 | return false; |
| 183 | } |
| 184 | |
| 185 | $user = wp_authenticate($username, $password); |
| 186 | |
| 187 | if (is_wp_error($user)) { |