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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 |
|---|---|
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * Filters the locale requested for WordPress core translations. |
| 65 | * |
| 66 | * @since 2.8.0 |
| 67 | * |
| 68 | * @param string $locale Current locale. |
| 69 | */ |
| 70 | $locale = apply_filters( 'core_version_check_locale', get_locale() ); |
| 71 | |
| 72 | // Update last_checked for current to prevent multiple blocking requests if request hangs. |
| 73 | $current->last_checked = time(); |
| 74 | set_site_transient( 'update_core', $current ); |
| 75 | |
| 76 | if ( method_exists( $wpdb, 'db_version' ) ) { |
| 77 | $mysql_version = preg_replace( '/[^0-9.].*/', '', $wpdb->db_version() ); |
| 78 | } else { |
| 79 | $mysql_version = 'N/A'; |