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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 |
|---|---|
| 1256 | * Filters list of page templates for a theme. |
| 1257 | * |
| 1258 | * @since 4.9.6 |
| 1259 | * |
| 1260 | * @param string[] $post_templates Array of template header names keyed by the template file name. |
| 1261 | * @param WP_Theme $theme The theme object. |
| 1262 | * @param WP_Post|null $post The post being edited, provided for context, or null. |
| 1263 | * @param string $post_type Post type to get the templates for. |
| 1264 | */ |
| 1265 | $post_templates = (array) apply_filters( 'theme_templates', $post_templates, $this, $post, $post_type ); |
| 1266 | |
| 1267 | /** |
| 1268 | * Filters list of page templates for a theme. |
| 1269 | * |
| 1270 | * The dynamic portion of the hook name, `$post_type`, refers to the post type. |
| 1271 | * |
| 1272 | * @since 3.9.0 |
| 1273 | * @since 4.4.0 Converted to allow complete control over the `$page_templates` array. |
| 1274 | * @since 4.7.0 Added the `$post_type` parameter. |