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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 |
|---|---|
| 1311 | * Filters list of page templates for a theme. |
| 1312 | * |
| 1313 | * @since 4.9.6 |
| 1314 | * |
| 1315 | * @param string[] $post_templates Array of template header names keyed by the template file name. |
| 1316 | * @param WP_Theme $theme The theme object. |
| 1317 | * @param WP_Post|null $post The post being edited, provided for context, or null. |
| 1318 | * @param string $post_type Post type to get the templates for. |
| 1319 | */ |
| 1320 | $post_templates = (array) apply_filters( 'theme_templates', $post_templates, $this, $post, $post_type ); |
| 1321 | |
| 1322 | /** |
| 1323 | * Filters list of page templates for a theme. |
| 1324 | * |
| 1325 | * The dynamic portion of the hook name, `$post_type`, refers to the post type. |
| 1326 | * |
| 1327 | * Possible hook names include: |
| 1328 | * |
| 1329 | * - `theme_post_templates` |