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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 |
|---|---|
| 276 | if ( !empty( $addl_path ) && $wp_rewrite->using_index_permalinks() && strpos($redirect['path'], '/index.php/') === false ) |
| 277 | $redirect['path'] = trailingslashit($redirect['path']) . 'index.php/'; |
| 278 | if ( !empty( $addl_path ) ) |
| 279 | $redirect['path'] = trailingslashit($redirect['path']) . $addl_path; |
| 280 | $redirect_url = $redirect['scheme'] . '://' . $redirect['host'] . $redirect['path']; |
| 281 | } |
| 282 | |
| 283 | if ( 'wp-register.php' == basename( $redirect['path'] ) ) { |
| 284 | if ( is_multisite() ) |
| 285 | $redirect_url = apply_filters( 'wp_signup_location', network_site_url( 'wp-signup.php' ) ); |
| 286 | else |
| 287 | $redirect_url = site_url( 'wp-login.php?action=register' ); |
| 288 | wp_redirect( $redirect_url, 301 ); |
| 289 | die(); |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | // tack on any additional query vars |
| 294 | $redirect['query'] = preg_replace( '#^\??&*?#', '', $redirect['query'] ); |