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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 |
|---|---|
| 894 | /** |
| 895 | * Filter the HTML output of the li element in the post custom fields list. |
| 896 | * |
| 897 | * @since 2.2.0 |
| 898 | * |
| 899 | * @param string $html The HTML output for the li element. |
| 900 | * @param string $key Meta key. |
| 901 | * @param string $value Meta value. |
| 902 | */ |
| 903 | echo apply_filters( 'the_meta_key', "<li><span class='post-meta-key'>$key:</span> $value</li>\n", $key, $value ); |
| 904 | } |
| 905 | echo "</ul>\n"; |
| 906 | } |
| 907 | } |
| 908 | |
| 909 | // |
| 910 | // Pages |
| 911 | // |
| 912 | |