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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 |
|---|---|
| 229 | |
| 230 | if ( $keys = get_post_custom_keys() ) { |
| 231 | echo "<ul class='post-meta'>\n"; |
| 232 | foreach ( $keys as $key ) { |
| 233 | $keyt = trim($key); |
| 234 | if ( '_' == $keyt{0} ) |
| 235 | continue; |
| 236 | $values = array_map('trim', get_post_custom_values($key)); |
| 237 | $value = implode($values,', '); |
| 238 | echo apply_filters('the_meta_key', "<li><span class='post-meta-key'>$key:</span> $value</li>\n", $key, $value); |
| 239 | } |
| 240 | echo "</ul>\n"; |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | |
| 245 | // |
| 246 | // Pages |
| 247 | // |