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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 |
---|---|
2347 | elseif ( $cur->meta_value != $meta_value ) |
2348 | $wpdb->update($wpdb->usermeta, compact('meta_value'), compact('user_id', 'meta_key') ); |
2349 | else |
2350 | return false; |
2351 |
|
2352 | clean_user_cache( $user_id ); |
2353 | wp_cache_delete( $user_id, 'user_meta' ); |
2354 |
|
2355 | if ( !$cur ) |
2356 | do_action( 'added_usermeta', $wpdb->insert_id, $user_id, $meta_key, $meta_value ); |
2357 | else |
2358 | do_action( 'updated_usermeta', $cur->umeta_id, $user_id, $meta_key, $meta_value ); |
2359 |
|
2360 | return true; |
2361 | } |
2362 |
|
2363 | /** |
2364 | * Get users for the site. |
2365 | * |