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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 |
|---|---|
| 806 | if ( !empty( $role ) ) { |
| 807 | $this->caps[$role] = true; |
| 808 | $this->roles = array( $role => true ); |
| 809 | } else { |
| 810 | $this->roles = false; |
| 811 | } |
| 812 | update_user_meta( $this->ID, $this->cap_key, $this->caps ); |
| 813 | $this->get_role_caps(); |
| 814 | $this->update_user_level_from_caps(); |
| 815 | do_action( 'set_user_role', $this->ID, $role ); |
| 816 | } |
| 817 | |
| 818 | /** |
| 819 | * Choose the maximum level the user has. |
| 820 | * |
| 821 | * Will compare the level from the $item parameter against the $max |
| 822 | * parameter. If the item is incorrect, then just the $max parameter value |
| 823 | * will be returned. |
| 824 | * |