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