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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 |
|---|---|
| 81 | |
| 82 | if ( empty($rich_editing) ) |
| 83 | $rich_editing = 'true'; |
| 84 | |
| 85 | if ( empty($user_registered) ) |
| 86 | $user_registered = gmdate('Y-m-d H:i:s'); |
| 87 | |
| 88 | if ( $update ) { |
| 89 | $query = "UPDATE $wpdb->users SET user_pass='$user_pass', user_email='$user_email', user_url='$user_url', user_nicename = '$user_nicename', display_name = '$display_name' WHERE ID = '$ID'"; |
| 90 | $query = apply_filters('update_user_query', $query); |
| 91 | $wpdb->query( $query ); |
| 92 | $user_id = (int) $ID; |
| 93 | } else { |
| 94 | $query = "INSERT INTO $wpdb->users |
| 95 | (user_login, user_pass, user_email, user_url, user_registered, user_nicename, display_name) |
| 96 | VALUES |
| 97 | ('$user_login', '$user_pass', '$user_email', '$user_url', '$user_registered', '$user_nicename', '$display_name')"; |
| 98 | $query = apply_filters('create_user_query', $query); |
| 99 | $wpdb->query( $query ); |