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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 |
|---|---|
| 237 | function wp_login_url($redirect = '', $force_reauth = false) { |
| 238 | $login_url = site_url('wp-login.php', 'login'); |
| 239 | |
| 240 | if ( !empty($redirect) ) |
| 241 | $login_url = add_query_arg('redirect_to', urlencode($redirect), $login_url); |
| 242 | |
| 243 | if ( $force_reauth ) |
| 244 | $login_url = add_query_arg('reauth', '1', $login_url); |
| 245 | |
| 246 | return apply_filters('login_url', $login_url, $redirect); |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Provides a simple login form for use anywhere within WordPress. By default, it echoes |
| 251 | * the HTML immediately. Pass array('echo'=>false) to return the string instead. |
| 252 | * |
| 253 | * @since 3.0.0 |
| 254 | * @param array $args Configuration options to modify the form output. |
| 255 | * @return string|null String when retrieving, null when displaying. |