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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 |
---|---|
484 | if ( isset( $_GET['wp_lang'] ) ) { |
485 | setcookie( 'wp_lang', sanitize_text_field( $_GET['wp_lang'] ), 0, COOKIEPATH, COOKIE_DOMAIN, $secure ); |
486 | } |
487 |
|
488 | /** |
489 | * Fires when the login form is initialized. |
490 | * |
491 | * @since 3.2.0 |
492 | */ |
493 | do_action( 'login_init' ); |
494 |
|
495 | /** |
496 | * Fires before a specified login form action. |
497 | * |
498 | * The dynamic portion of the hook name, `$action`, refers to the action |
499 | * that brought the visitor to the login form. |
500 | * |
501 | * Possible hook names include: |
502 | * |