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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 |
|---|---|
| 75 | if ( 'message' == $severity ) |
| 76 | $messages .= ' ' . $error . "<br />\n"; |
| 77 | else |
| 78 | $errors .= ' ' . $error . "<br />\n"; |
| 79 | } |
| 80 | } |
| 81 | if ( !empty($errors) ) |
| 82 | echo '<div id="login_error">' . apply_filters('login_errors', $errors) . "</div>\n"; |
| 83 | if ( !empty($messages) ) |
| 84 | echo '<p class="message">' . apply_filters('login_messages', $messages) . "</p>\n"; |
| 85 | } |
| 86 | } // End of login_header() |
| 87 | |
| 88 | /** |
| 89 | * Handles sending password retrieval email to user. |
| 90 | * |
| 91 | * @uses $wpdb WordPress Database object |
| 92 | * |
| 93 | * @return bool|WP_Error True: when finish. WP_Error on error |