WP hooks navigation: Home/browse • Actions index • Filters index
To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 192 | |
| 193 | |
| 194 | /* Options functions */ |
| 195 | |
| 196 | // expects $setting to already be SQL-escaped |
| 197 | function get_option( $setting ) { |
| 198 | global $wpdb; |
| 199 | |
| 200 | // Allow plugins to short-circuit options. |
| 201 | $pre = apply_filters( 'pre_option_' . $setting, false ); |
| 202 | if ( false !== $pre ) |
| 203 | return $pre; |
| 204 | |
| 205 | // prevent non-existent options from triggering multiple queries |
| 206 | $notoptions = wp_cache_get( 'notoptions', 'options' ); |
| 207 | if ( isset( $notoptions[$setting] ) ) |
| 208 | return false; |
| 209 | |
| 210 | $alloptions = wp_load_alloptions(); |