PHP is_serialized_string函数代码示例

/**
 * {@internal Missing Short Description}}
 *
 * @since 2.5.0
 *
 * @param unknown_type $entry
 * @param unknown_type $count
 * @return unknown
 */
function file_gallery_list_meta_row($entry, &$count)
{
    static $update_nonce = false;
    if (is_protected_meta($entry['meta_key'], 'post')) {
        return;
    }
    if (!$update_nonce) {
        $update_nonce = wp_create_nonce('add-meta');
    }
    $r = '';
    ++$count;
    if ($count % 2) {
        $style = 'alternate';
    } else {
        $style = '';
    }
    if (is_serialized($entry['meta_value'])) {
        if (is_serialized_string($entry['meta_value'])) {
            // this is a serialized string, so we should display it
            $entry['meta_value'] = maybe_unserialize($entry['meta_value']);
        } else {
            // this is a serialized array/object so we should NOT display it
            --$count;
            return;
        }
    }
    $entry['meta_key'] = esc_attr($entry['meta_key']);
    $entry['meta_value'] = esc_textarea($entry['meta_value']);
    // using a <textarea />
    $entry['meta_id'] = (int) $entry['meta_id'];
    $delete_nonce = wp_create_nonce('delete-meta_' . $entry['meta_id']);
    $r .= "\n\t<tr id='meta-{$entry['meta_id']}' class='{$style}'>";
    $r .= "\n\t\t<td class='left'><label class='screen-reader-text' for='meta[{$entry['meta_id']}][key]'>" . __('Key') . "</label><input name='meta[{$entry['meta_id']}][key]' id='meta[{$entry['meta_id']}][key]' type='text' size='20' value='{$entry['meta_key']}' />";
    $r .= "\n\t\t<div class='submit'>";
    $r .= get_submit_button(__('Delete'), 'deletemeta small', "deletemeta[{$entry['meta_id']}]", false, array('data-wp-lists' => "delete:attachment-the-list:meta-{$entry['meta_id']}::_ajax_nonce={$delete_nonce}"));
    $r .= "\n\t\t";
    $r .= get_submit_button(__('Update'), 'updatemeta small', "meta-{$entry['meta_id']}-submit", false, array('data-wp-lists' => "add:attachment-the-list:meta-{$entry['meta_id']}::_ajax_nonce-add-meta={$update_nonce}"));
    $r .= "</div>";
    $r .= wp_nonce_field('change-meta', '_ajax_nonce', false, false);
    $r .= "</td>";
    $r .= "\n\t\t<td><label class='screen-reader-text' for='meta[{$entry['meta_id']}][value]'>" . __('Value') . "</label><textarea name='meta[{$entry['meta_id']}][value]' id='meta[{$entry['meta_id']}][value]' rows='2' cols='30'>{$entry['meta_value']}</textarea></td>\n\t</tr>";
    return $r;
}

/**
 * {@internal Missing Short Description}}
 *
 * @since unknown
 *
 * @param unknown_type $entry
 * @param unknown_type $count
 * @return unknown
 */
function _list_meta_row( $entry, &$count ) {
	static $update_nonce = false;
	if ( !$update_nonce )
		$update_nonce = wp_create_nonce( 'add-meta' );

	$r = '';
	++ $count;
	if ( $count % 2 )
		$style = 'alternate';
	else
		$style = '';
	if ('_' == $entry['meta_key'] { 0 } )
		$style .= ' hidden';

	if ( is_serialized( $entry['meta_value'] ) ) {
		if ( is_serialized_string( $entry['meta_value'] ) ) {
			// this is a serialized string, so we should display it
			$entry['meta_value'] = maybe_unserialize( $entry['meta_value'] );
		} else {
			// this is a serialized array/object so we should NOT display it
			--$count;
			return;
		}
	}

	$entry['meta_key'] = attribute_escape($entry['meta_key']);
	$entry['meta_value'] = htmlspecialchars($entry['meta_value']); // using a <textarea />
	$entry['meta_id'] = (int) $entry['meta_id'];

	$delete_nonce = wp_create_nonce( 'delete-meta_' . $entry['meta_id'] );

	$r .= "\n\t<tr id='meta-{$entry['meta_id']}' class='$style'>";
	$r .= "\n\t\t<td class='left'><label class='hidden' for='meta[{$entry['meta_id']}][key]'>" . __( 'Key' ) . "</label><input name='meta[{$entry['meta_id']}][key]' id='meta[{$entry['meta_id']}][key]' tabindex='6' type='text' size='20' value='{$entry['meta_key']}' />";

	$r .= "\n\t\t<div class='submit'><input name='deletemeta[{$entry['meta_id']}]' type='submit' ";
	$r .= "class='delete:the-list:meta-{$entry['meta_id']}::_ajax_nonce=$delete_nonce deletemeta' tabindex='6' value='".attribute_escape(__( 'Delete' ))."' />";
	$r .= "\n\t\t<input name='updatemeta' type='submit' tabindex='6' value='".attribute_escape(__( 'Update' ))."' class='add:the-list:meta-{$entry['meta_id']}::_ajax_nonce=$update_nonce updatemeta' /></div>";
	$r .= wp_nonce_field( 'change-meta', '_ajax_nonce', false, false );
	$r .= "</td>";

	$r .= "\n\t\t<td><label class='hidden' for='meta[{$entry['meta_id']}][value]'>" . __( 'Value' ) . "</label><textarea name='meta[{$entry['meta_id']}][value]' id='meta[{$entry['meta_id']}][value]' tabindex='6' rows='2' cols='30'>{$entry['meta_value']}</textarea></td>\n\t</tr>";
	return $r;
}

 /**
  * Prepares meta data for return as an object.
  *
  * @param stdClass $data Metadata row from database
  * @param WP_REST_Request $request
  * @param boolean $is_raw Is the value field still serialized? (False indicates the value has been unserialized)
  * @return WP_REST_Response|WP_Error Meta object data on success, WP_Error otherwise
  */
 public function prepare_item_for_response($data, $request, $is_raw = false)
 {
     $id_column = $this->get_id_column();
     $id = $data->{$id_column};
     $key = $data->meta_key;
     $value = $data->meta_value;
     // Don't expose protected fields.
     if (is_protected_meta($key)) {
         return new WP_Error('rest_meta_protected', sprintf(__('%s is marked as a protected field.'), $key), array('status' => 403));
     }
     // Normalize serialized strings
     if ($is_raw && is_serialized_string($value)) {
         $value = unserialize($value);
     }
     // Don't expose serialized data
     if (is_serialized($value) || !is_string($value)) {
         return new WP_Error('rest_meta_protected', sprintf(__('%s contains serialized data.'), $key), array('status' => 403));
     }
     $meta = array('id' => (int) $id, 'key' => $key, 'value' => $value);
     $response = rest_ensure_response($meta);
     $parent_column = $this->get_parent_column();
     $response->add_link('about', rest_url('wp/' . $this->parent_base . '/' . $data->{$parent_column}), array('embeddable' => true));
     /**
      * Filter a meta value returned from the API.
      *
      * Allows modification of the meta value right before it is returned.
      *
      * @param array           $response Key value array of meta data: id, key, value.
      * @param WP_REST_Request $request  Request used to generate the response.
      */
     return apply_filters('rest_prepare_meta_value', $response, $request);
 }

function get_post_meta_by_id( $mid ) {
	global $wpdb;
	$mid = (int) $mid;

	$meta = $wpdb->get_row( "SELECT * FROM $wpdb->postmeta WHERE meta_id = '$mid'" );
	if ( is_serialized_string( $meta->meta_value ) )
		$meta->meta_value = maybe_unserialize( $meta->meta_value );
	return $meta;
}

}
$xtpl = new XTemplate($op . '.tpl', NV_ROOTDIR . '/themes/' . $global_config['module_theme'] . '/modules/' . $module_file);
$xtpl->assign('LANG', $lang_module);
$xtpl->assign('REQUEST', $request);
$xtpl->assign('NV_BASE_ADMINURL', NV_BASE_ADMINURL);
$xtpl->assign('NV_LANG_VARIABLE', NV_LANG_VARIABLE);
$xtpl->assign('NV_LANG_DATA', NV_LANG_DATA);
$xtpl->assign('NV_NAME_VARIABLE', NV_NAME_VARIABLE);
$xtpl->assign('MODULE_NAME', $module_name);
$NV_Http = new NukeViet\Http\Http($global_config, NV_TEMP_DIR);
$stored_cookies = nv_get_cookies();
// Debug
$args = array('headers' => array('Referer' => NUKEVIET_STORE_APIURL), 'cookies' => $stored_cookies, 'body' => $request);
$array = $NV_Http->post(NUKEVIET_STORE_APIURL, $args);
$cookies = $array['cookies'];
$array = !empty($array['body']) ? is_serialized_string($array['body']) ? unserialize($array['body']) : array() : array();
$error = '';
if (!empty(NukeViet\Http\Http::$error)) {
    $error = nv_http_get_lang(NukeViet\Http\Http::$error);
} elseif (empty($array['status']) or !isset($array['error']) or !isset($array['data']) or !isset($array['pagination']) or !is_array($array['error']) or !is_array($array['data']) or !is_array($array['pagination']) or !empty($array['error']) and (!isset($array['error']['level']) or empty($array['error']['message']))) {
    $error = $lang_global['error_valid_response'];
} elseif (!empty($array['error']['message'])) {
    $error = $array['error']['message'];
}
// Show error
if (!empty($error)) {
    $xtpl->assign('ERROR', $error);
    $xtpl->parse('main.error');
} elseif ($array['status'] == 'notlogin') {
    $xtpl->assign('LOGIN_NOTE', sprintf($lang_module['login_require'], NV_BASE_ADMINURL . 'index.php?' . NV_LANG_VARIABLE . '=' . NV_LANG_DATA . '&' . NV_NAME_VARIABLE . '=' . $module_name . '&' . NV_OP_VARIABLE . '=login&redirect=' . nv_redirect_encrypt($client_info['selfurl'])));
    $xtpl->parse('main.login');

 * Check whether serialized data is of string type.
 *
 * @since 2.0.5
 *
 * @param mixed $data Serialized data
 * @return bool False if not a serialized string, true if it is.
 */
function is_serialized_string($data)
{
    // if it isn't a string, it isn't a serialized string
    if (!is_string($data)) {
        return false;
    }
    //$data = trim( $data );
    $length = strlen($data);
    if ($length < 4) {
        return false;
    } elseif (':' !== $data[1]) {
        return false;
    } elseif (';' !== $data[$length - 1]) {
        return false;
    } elseif ($data[0] !== 's') {
        return false;
    } elseif ('"' !== $data[$length - 2]) {
        return false;
    } else {
        return true;
    }
}
$result = is_serialized_string(user_input());
label("after-call");

 /**
  * Prepares meta data for return as an object.
  *
  * @param stdClass $data Metadata row from database
  * @param WP_REST_Request $request
  * @param boolean $is_raw Is the value field still serialized? (False indicates the value has been unserialized)
  * @return WP_REST_Response|WP_Error Meta object data on success, WP_Error otherwise
  */
 public function prepare_item_for_response($data, $request, $is_raw = false)
 {
     $id_column = $this->get_id_column();
     $id = $data->{$id_column};
     $key = $data->meta_key;
     $value = $data->meta_value;
     // Don't expose protected fields.
     if (is_protected_meta($key)) {
         return new WP_Error('rest_meta_protected', sprintf(__('%s is marked as a protected field.'), $key), array('status' => 403));
     }
     // Normalize serialized strings
     if ($is_raw && is_serialized_string($value)) {
         $value = unserialize($value);
     }
     // Don't expose serialized data
     if (is_serialized($value) || !is_string($value)) {
         return new WP_Error('rest_meta_protected', sprintf(__('%s contains serialized data.'), $key), array('status' => 403));
     }
     $meta = array('id' => (int) $id, 'key' => $key, 'value' => $value);
     $response = rest_ensure_response($meta);
     $parent_column = $this->get_parent_column();
     $response->add_link('about', rest_url('wp/' . $this->parent_base . '/' . $data->{$parent_column}), array('embeddable' => true));
     return apply_filters('rest_prepare_meta_value', $response, $request);
 }

function list_meta($meta)
{
    global $post_ID;
    // Exit if no meta
    if (!$meta) {
        return;
    }
    $count = 0;
    ?>
<table id='meta-list' cellpadding="3">
	<tr>
		<th><?php 
    _e('Key');
    ?>
</th>
		<th><?php 
    _e('Value');
    ?>
</th>
		<th colspan='2'><?php 
    _e('Action');
    ?>
</th>
	</tr>
<?php 
    foreach ($meta as $entry) {
        ++$count;
        if ($count % 2) {
            $style = 'alternate';
        } else {
            $style = '';
        }
        if ('_' == $entry['meta_key'][0]) {
            $style .= ' hidden';
        }
        if (is_serialized($entry['meta_value'])) {
            if (is_serialized_string($entry['meta_value'])) {
                // this is a serialized string, so we should display it
                $entry['meta_value'] = maybe_unserialize($entry['meta_value']);
            } else {
                // this is a serialized array/object so we should NOT display it
                --$count;
                continue;
            }
        }
        $entry['meta_key'] = attribute_escape($entry['meta_key']);
        $entry['meta_value'] = attribute_escape($entry['meta_value']);
        $entry['meta_id'] = (int) $entry['meta_id'];
        echo "\n\t\t\t<tr class='{$style}'>\n\t\t\t\t<td valign='top'><input name='meta[{$entry['meta_id']}][key]' tabindex='6' type='text' size='20' value='{$entry['meta_key']}' /></td>\n\t\t\t\t<td><textarea name='meta[{$entry['meta_id']}][value]' tabindex='6' rows='2' cols='30'>{$entry['meta_value']}</textarea></td>\n\t\t\t\t<td align='center'><input name='updatemeta' type='submit' class='updatemeta' tabindex='6' value='" . attribute_escape(__('Update')) . "' /><br />\n\t\t\t\t<input name='deletemeta[{$entry['meta_id']}]' type='submit' class='deletemeta' tabindex='6' value='" . attribute_escape(__('Delete')) . "' /></td>\n\t\t\t</tr>\n\t\t";
    }
    echo "\n\t\t</table>\n\t";
}

 protected static function unpack_variable($variable)
 {
     if (is_string($variable) && is_serialized_string($variable)) {
         $variable = unserialize($variable);
     } else {
         if (is_string($variable) && self::is_json($variable)) {
             $variable = json_decode($variable);
         }
     }
     return $variable;
 }

<?php

/**
 * @Project NUKEVIET 4.x
 * @Author VINADES.,JSC (contact@vinades.vn)
 * @Copyright (C) 2014 VINADES.,JSC. All rights reserved
 * @License GNU/GPL version 2 or any later version
 * @Createdate 2-1-2010 22:5
 */
if (!defined('NV_IS_FILE_EXTENSIONS')) {
    die('Stop!!!');
}
$contents = '';
$array = $nv_Request->get_string('data', 'post', '');
$array = $array ? nv_base64_decode($array) : '';
if ($array and is_serialized_string($array)) {
    $array = @unserialize($array);
} else {
    $array = array();
}
$request = array();
$request['id'] = isset($array['id']) ? intval($array['id']) : 0;
$request['fid'] = isset($array['compatible']['id']) ? intval($array['compatible']['id']) : 0;
// Fixed request
$request['lang'] = NV_LANG_INTERFACE;
$request['basever'] = $global_config['version'];
$request['mode'] = 'download';
if (empty($request['id']) or empty($request['fid']) or !isset($array['tid'])) {
    $contents = "ERR|" . $lang_module['download_error_preparam'];
} else {
    $filename = NV_TEMPNAM_PREFIX . 'auto_' . md5($global_config['sitekey'] . session_id()) . '.zip';

						</table>

						<h3><?php 
        printf(__('Blog options (wp_%s_options)'), $id);
        ?>
</h3>
						<table class="form-table">
							<?php 
        $editblog_default_role = 'subscriber';
        foreach ($options as $key => $val) {
            if ($val['option_name'] == 'default_role') {
                $editblog_default_role = $val['option_value'];
            }
            $disabled = '';
            if (is_serialized($val['option_value'])) {
                if (is_serialized_string($val['option_value'])) {
                    $val['option_value'] = wp_specialchars(maybe_unserialize($val['option_value']), 'single');
                } else {
                    $val['option_value'] = "SERIALIZED DATA";
                    $disabled = ' disabled="disabled"';
                }
            }
            if (stristr($val['option_value'], "\r") || stristr($val['option_value'], "\n") || stristr($val['option_value'], "\r\n")) {
                ?>
									<tr class="form-field">
										<th scope="row"><?php 
                echo ucwords(str_replace("_", " ", $val['option_name']));
                ?>
</th> 
										<td><textarea rows="5" cols="40" name="option[<?php 
                echo $val['option_name'];

 /**
 *  member_id 会员id
 		platform_id 第三方平台会员id char
 		nick_name 昵称
 		type 会员类型
 		type_name 会员类型名称
 		avatar_url 头像地址
 		bind_time 绑定时间
 		bind_ip 绑定ip
 * Enter description here ...
 */
 public function bind()
 {
     $memberUpdataField = array();
     //主表修改字段
     $member_id = intval($this->user['user_id']);
     if (!$member_id) {
         $this->errorOutput(USER_NO_LOGIN);
     }
     $platform_id = trim($this->input['platform_id']);
     $password = $this->input['password'] ? trim($this->input['password']) : '';
     $type = trim($this->input['type']);
     $platformInfo = $this->Members->get_platform_name($type);
     $identifierUserSystem = new identifierUserSystem();
     $identifier = $identifierUserSystem->setIdentifier((int) $this->input['identifier'])->checkIdentifier();
     //多用户系统
     if (in_array($type, array('m2o', 'uc')) || empty($platformInfo)) {
         $this->errorOutput(BIND_MEMBER_TYPE_ERROR);
     } else {
         if (!$platformInfo['status']) {
             $this->errorOutput(BIND_MEMBER_TYPE_CLOSE);
         }
     }
     $type_name = $platformInfo['name'];
     $device_token = $this->Members->check_device_token(trim($this->input['device_token']));
     $udid = $this->Members->check_udid(trim($this->input['uuid']));
     //唯一设备号
     if ($device_token === 0) {
         $this->errorOutput(ERROR_DEVICE_TOKEN);
     }
     if ($udid === 0) {
         $this->errorOutput(ERROR_UDID);
     }
     $avatar_url = trim($this->input['avatar_url']);
     $ip = hg_getip();
     //验证会员是否存在
     $condition = " AND m.member_id=" . $member_id;
     $left_join = 'LEFT JOIN ' . DB_PREFIX . 'member_bind as mb ON m.member_id=mb.member_id AND m.type=mb.type';
     $ret_member = $this->mMember->get_member_info($condition, 'm.*,mb.nick_name', $left_join, 0);
     $ret_member = $ret_member[0];
     if (empty($ret_member)) {
         $this->errorOutput(NO_MEMBER);
     }
     $callback_sql = '';
     if (!empty($ret_member['nick_name'])) {
         $nick_name = $ret_member['nick_name'];
     } else {
         $nick_name = $platform_id;
     }
     if (empty($avatar_url)) {
         $avatar = array('host' => '', 'dir' => '', 'filepath' => '', 'filename' => '');
         if (is_serialized_string($ret_member['avatar'])) {
             $avatar = unserialize($ret_member['avatar']);
         }
         $avatar_url = $avatar['host'] . $avatar['dir'] . $avatar['filepath'] . $avatar['filename'];
     } else {
         $avatar_url = trim($this->input['avatar_url']);
     }
     if (hg_check_email_format($platform_id)) {
         $sql = 'SELECT platform_id FROM ' . DB_PREFIX . 'member_bind WHERE platform_id="' . $platform_id . '" AND identifier=' . $identifier;
         $result = $this->db->query_first($sql);
         if ($result) {
             $this->errorOutput(EMAIL_HAS_BINDED);
         }
         if (defined(BIND_EMAIL_NEED_VERIFYCODE)) {
             $email_verifycode = trim($this->input['email_verifycode']);
             if (!$email_verifycode) {
                 $this->errorOutput(VERIFY_NULL);
             }
             if ($this->memberverifycode->get_verifycode_info($platform_id, $email_verifycode, 1, $action = 1)) {
                 //验证成功之后删除
                 $this->memberverifycode->verifycode_delete($platform_id, $email_verifycode, 1, $action = 1);
             } else {
                 $this->errorOutput(VERIFY_FAILED);
             }
         }
         $type = 'email';
         $type_name = '邮箱';
     } elseif (hg_verify_mobile($platform_id)) {
         $type = 'shouji';
         $type_name = '手机';
     }
     $need_password_type = array('shouji', 'm2o', 'email');
     if (in_array($type, $need_password_type) && $password) {
         //随机串
         $salt = hg_generate_salt();
         //密码md5
         $md5_password = md5(md5($password) . $salt);
         $memberUpdataField['password'] = $md5_password;
         $memberUpdataField['salt'] = $salt;
//.........这里部分代码省略.........

    /**
     * @since 1.6.3
     *
     * @param        $entry
     * @param string $meta_type
     *
     * @return string|void
     */
    function _list_meta_item($entry, $meta_type = 'gmedia')
    {
        if (is_serialized($entry['meta_value'])) {
            if (is_serialized_string($entry['meta_value'])) {
                // This is a serialized string, so we should display it.
                $entry['meta_value'] = maybe_unserialize($entry['meta_value']);
            } else {
                // This is a serialized array/object so we should NOT display it.
                return;
            }
        }
        $entry['meta_key'] = esc_attr($entry['meta_key']);
        $entry['meta_value'] = esc_textarea($entry['meta_value']);
        // using a <textarea />
        $entry['meta_id'] = (int) $entry['meta_id'];
        $colsm = 'gmedia' == $meta_type ? 6 : 4;
        //$delete_nonce = wp_create_nonce( 'gmedia_custom_field', '_customfield_nonce' );
        $item = '
			<div class="form-group col-sm-' . $colsm . ' gm-custom-meta-' . $entry['meta_id'] . '">
				<span class="delete-custom-field glyphicon glyphicon-remove pull-right text-danger"></span>
				<label>' . $entry['meta_key'] . '</label>
				<textarea name="meta[' . $entry['meta_id'] . ']" class="gmedia-custom-field gm-custom-field-' . $entry['meta_id'] . ' vert form-control input-sm" style="height:30px;" placeholder="' . __('Value', 'grand-media') . '" rows="1" cols="30">' . $entry['meta_value'] . '</textarea>
			</div>
		';
        return $item;
    }

function nebula_initialization_email_prev_settings()
{
    $email_admin_timeout = get_transient('nebula_email_admin_timeout');
    if (!empty($email_admin_timeout) || !nebula_is_initialized_before()) {
        return;
    }
    global $wpdb;
    $current_user = wp_get_current_user();
    $to = $current_user->user_email;
    $headers[] = 'From: ' . get_bloginfo('name');
    //Carbon copy the admin if reset was done by another user.
    $admin_user_email = get_option('nebula_contact_email', get_option('admin_email'));
    if ($admin_user_email != $current_user->user_email) {
        $headers[] = 'Cc: ' . $admin_user_email;
    }
    $subject = 'Wordpress theme settings reset for ' . get_bloginfo('name');
    $message = '<p>Wordpress theme settings have been reset for <strong>' . get_bloginfo('name') . '</strong> by <strong>' . $current_user->display_name . ' <' . $current_user->user_email . '></strong> on <strong>' . date('F j, Y') . '</strong> at <strong> ' . date('g:ia') . '</strong>.</p><p>Below is a record of the previous settings prior to the reset for backup purposes:</p>';
    $message .= '<table style="width: 100%;>';
    $options = $wpdb->get_results("SELECT * FROM {$wpdb->options} ORDER BY option_name");
    foreach ($options as $option) {
        if ($option->option_name != '') {
            if (is_serialized($option->option_value)) {
                if (is_serialized_string($option->option_value)) {
                    $value = maybe_unserialize($option->option_value);
                    $options_to_update[] = $option->option_name;
                } else {
                    $value = 'SERIALIZED DATA';
                }
            } else {
                $value = $option->option_value;
                $options_to_update[] = $option->option_name;
            }
            $message .= '<tr><td style="width: 40%; min-width: 330px;">';
            if (strpos(esc_html($option->option_name), 'nebula') !== false) {
                $message .= '<strong style="color: #0098d7;">' . esc_html($option->option_name) . '</strong>';
            } else {
                $message .= '<strong>' . esc_html($option->option_name) . '</strong>';
            }
            $message .= '</td><td style="width: 60%;">';
            if (strpos($value, "\n") !== false) {
                $message .= '<textarea rows="5" style="width: 95%; resize: vertical;">' . esc_textarea($value) . '</textarea>';
            } else {
                $message .= '<input type="text" value="' . esc_attr($value) . '" style="width: 95%;" />';
            }
            $message .= '</td></tr>';
        }
    }
    $message .= '</table>';
    //Set the content type to text/html for the email. Don't forget to reset after wp_mail()!
    add_filter('wp_mail_content_type', 'set_html_content_type');
    function set_html_content_type()
    {
        return 'text/html';
    }
    wp_mail($to, $subject, $message, $headers);
    remove_filter('wp_mail_content_type', 'set_html_content_type');
    //This resets the content type for the email.
    set_transient('nebula_email_admin_timeout', 'true', 60 * 15);
    //15 minute expiration
}

_e('Add meta', 'woocommerce');
?>
</button></td>
				</tr>
			</tfoot>
			<tbody class="meta_items">
			<?php 
if ($metadata = $order->has_meta($item_id)) {
    foreach ($metadata as $meta) {
        // Skip hidden core fields
        if (in_array($meta['meta_key'], apply_filters('woocommerce_hidden_order_itemmeta', array('_qty', '_tax_class', '_product_id', '_variation_id', '_line_subtotal', '_line_subtotal_tax', '_line_total', '_line_tax')))) {
            continue;
        }
        // Handle serialised fields
        if (is_serialized($meta['meta_value'])) {
            if (is_serialized_string($meta['meta_value'])) {
                // this is a serialized string, so we should display it
                $meta['meta_value'] = maybe_unserialize($meta['meta_value']);
            } else {
                continue;
            }
        }
        $meta['meta_key'] = esc_attr($meta['meta_key']);
        $meta['meta_value'] = esc_textarea($meta['meta_value']);
        // using a <textarea />
        $meta['meta_id'] = (int) $meta['meta_id'];
        echo '<tr data-meta_id="' . $meta['meta_id'] . '">
							<td><input type="text" name="meta_key[' . $meta['meta_id'] . ']" value="' . $meta['meta_key'] . '" /></td>
							<td><input type="text" name="meta_value[' . $meta['meta_id'] . ']" value="' . $meta['meta_value'] . '" /></td>
							<td width="1%"><button class="remove_order_item_meta button">&times;</button></td>
						</tr>';