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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 |
|---|---|
| 379 | if ( ! empty( $addl_path ) ) { |
| 380 | $redirect['path'] = trailingslashit( $redirect['path'] ) . $addl_path; |
| 381 | } |
| 382 | $redirect_url = $redirect['scheme'] . '://' . $redirect['host'] . $redirect['path']; |
| 383 | } |
| 384 | |
| 385 | if ( 'wp-register.php' == basename( $redirect['path'] ) ) { |
| 386 | if ( is_multisite() ) { |
| 387 | /** This filter is documented in wp-login.php */ |
| 388 | $redirect_url = apply_filters( 'wp_signup_location', network_site_url( 'wp-signup.php' ) ); |
| 389 | } else { |
| 390 | $redirect_url = wp_registration_url(); |
| 391 | } |
| 392 | |
| 393 | wp_redirect( $redirect_url, 301 ); |
| 394 | die(); |
| 395 | } |
| 396 | } |
| 397 | |