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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 |
|---|---|
| 4214 | } else { |
| 4215 | /** |
| 4216 | * Filters the default revision query fields used by the given XML-RPC method. |
| 4217 | * |
| 4218 | * @since 3.5.0 |
| 4219 | * |
| 4220 | * @param array $field An array of revision query fields. |
| 4221 | * @param string $method The method name. |
| 4222 | */ |
| 4223 | $fields = apply_filters( 'xmlrpc_default_revision_fields', array( 'post_date', 'post_date_gmt' ), 'wp.getRevisions' ); |
| 4224 | } |
| 4225 | |
| 4226 | if ( ! $user = $this->login( $username, $password ) ) |
| 4227 | return $this->error; |
| 4228 | |
| 4229 | /** This action is documented in wp-includes/class-wp-xmlrpc-server.php */ |
| 4230 | do_action( 'xmlrpc_call', 'wp.getRevisions' ); |
| 4231 | |
| 4232 | if ( ! $post = get_post( $post_id ) ) |