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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 |
---|---|
5427 | * Fires when a deprecated hook is called. |
5428 | * |
5429 | * @since 4.6.0 |
5430 | * |
5431 | * @param string $hook The hook that was called. |
5432 | * @param string $replacement The hook that should be used as a replacement. |
5433 | * @param string $version The version of WordPress that deprecated the argument used. |
5434 | * @param string $message A message regarding the change. |
5435 | */ |
5436 | do_action( 'deprecated_hook_run', $hook, $replacement, $version, $message ); |
5437 |
|
5438 | /** |
5439 | * Filters whether to trigger deprecated hook errors. |
5440 | * |
5441 | * @since 4.6.0 |
5442 | * |
5443 | * @param bool $trigger Whether to trigger deprecated hook errors. Requires |
5444 | * `WP_DEBUG` to be defined true. |
5445 | */ |