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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 |
|---|---|
| 127 | $user_email = $user_data->user_email; |
| 128 | |
| 129 | do_action('retreive_password', $user_login); // Misspelled and deprecated |
| 130 | do_action('retrieve_password', $user_login); |
| 131 | |
| 132 | $key = $wpdb->get_var($wpdb->prepare("SELECT user_activation_key FROM $wpdb->users WHERE user_login = %s", $user_login)); |
| 133 | if ( empty($key) ) { |
| 134 | // Generate something random for a key... |
| 135 | $key = wp_generate_password(20, false); |
| 136 | do_action('retrieve_password_key', $user_login, $key); |
| 137 | // Now insert the new md5 key into the db |
| 138 | $wpdb->query($wpdb->prepare("UPDATE $wpdb->users SET user_activation_key = %s WHERE user_login = %s", $key, $user_login)); |
| 139 | } |
| 140 | $message = __('Someone has asked to reset the password for the following site and username.') . "\r\n\r\n"; |
| 141 | $message .= get_option('siteurl') . "\r\n\r\n"; |
| 142 | $message .= sprintf(__('Username: %s'), $user_login) . "\r\n\r\n"; |
| 143 | $message .= __('To reset your password visit the following address, otherwise just ignore this email and nothing will happen.') . "\r\n\r\n"; |
| 144 | $message .= site_url("wp-login.php?action=rp&key=$key", 'login') . "\r\n"; |
| 145 | |