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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 |
---|---|
178 | * @param string $username User's username. |
179 | * @param string $password User's password. |
180 | * @return mixed WP_User object if authentication passed, false otherwise |
181 | */ |
182 | function login( $username, $password ) { |
183 | /* |
184 | * Respect old get_option() filters left for back-compat when the 'enable_xmlrpc' |
185 | * option was deprecated in 3.5.0. Use the 'xmlrpc_enabled' hook instead. |
186 | */ |
187 | $enabled = apply_filters( 'pre_option_enable_xmlrpc', false ); |
188 | if ( false === $enabled ) { |
189 | $enabled = apply_filters( 'option_enable_xmlrpc', true ); |
190 | } |
191 |
|
192 | /** |
193 | * Filter whether XML-RPC is enabled. |
194 | * |
195 | * This is the proper filter for turning off XML-RPC. |
196 | * |