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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 |
|---|---|
| 391 | include_once $plugin; |
| 392 | |
| 393 | /** |
| 394 | * Fires once a single activated plugin has loaded. |
| 395 | * |
| 396 | * @since 5.1.0 |
| 397 | * |
| 398 | * @param string $plugin Full path to the plugin's main file. |
| 399 | */ |
| 400 | do_action( 'plugin_loaded', $plugin ); |
| 401 | } |
| 402 | unset( $plugin ); |
| 403 | |
| 404 | // Load pluggable functions. |
| 405 | require ABSPATH . WPINC . '/pluggable.php'; |
| 406 | require ABSPATH . WPINC . '/pluggable-deprecated.php'; |
| 407 | |
| 408 | // Set internal encoding. |
| 409 | wp_set_internal_encoding(); |