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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.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 3170 | * Check for PHP timezone support |
| 3171 | * |
| 3172 | */ |
| 3173 | function wp_timezone_supported() { |
| 3174 | if (function_exists('date_default_timezone_set') |
| 3175 | && function_exists('timezone_identifiers_list') |
| 3176 | && function_exists('timezone_open') |
| 3177 | && function_exists('timezone_offset_get') |
| 3178 | ) |
| 3179 | return apply_filters('timezone_support',true); |
| 3180 | |
| 3181 | return apply_filters('timezone_support',false); |
| 3182 | } |
| 3183 | |
| 3184 | /** |
| 3185 | * Gives a nicely formatted list of timezone strings // temporary! Not in final |
| 3186 | * |
| 3187 | * @param string $selectedzone - which zone should be the selected one |
| 3188 | * |
| 3189 | */ |
| 3190 | function wp_timezone_choice($selectedzone) { |