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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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33 | * |
34 | * The dynamic portion of the hook name, `$type`, refers to the filename -- minus the file |
35 | * extension and any non-alphanumeric characters delimiting words -- of the file to load. |
36 | * This hook also applies to various types of files loaded as part of the Template Hierarchy. |
37 | * |
38 | * @since 1.5.0 |
39 | * |
40 | * @param string $template Path to the template. See locate_template(). |
41 | */ |
42 | return apply_filters( "{$type}_template", $template ); |
43 | } |
44 |
|
45 | /** |
46 | * Retrieve path of index template in current or parent template. |
47 | * |
48 | * The template path is filterable via the dynamic {@see '$type_template'} hook, |
49 | * e.g. 'index_template'. |
50 | * |
51 | * @since 3.0.0 |